Showcase No. 27
July-August 1960
Cover: Sea Devils watching hand of giant monster smash through sunken ship //Russ Heath (wash drawing)
Story: “The Golden Monster” (25 pages)
Editor, writer: Robert Kanigher
Artist: Russ Heath
Feature Characters: The Sea Devils (Dane Dorrance, Judy Walton, Nicky Walton, Biff Bailey; first appearance for all; origin)
Supporting Character: John Payton Dorrance (Dane’s father; in flashback; first appearance; first and middle names revealed in SEA DEVILS #22)
Villain: The “Golden Monster” (first appearance; dies in this story)
Synopsis: Four divers converge on a sunken treasure ship for separate reasons—Dane Dorrance to earn his father’s frogman flippers by an act of courage, Judy and Nicky Walton to make a name for Judy so that she can get a movie part, and Biff Bailey to impress his girlfriend that he is something other than a clumsy ox—but all band together to defend themselves from an aquatic monster in the area.

Showcase No. 28
September-October 1960
Cover: Sea Devils caged by undersea beings //Russ Heath (wash drawing)
Story: “The Prize Flippers” (9 pages)
Editor, writer: Robert Kanigher
Artist: Russ Heath
Feature Characters: The Sea Devils
Supporting Character: John Payton Dorrance (next appears, as Captain X, in SEA DEVILS #22)
Villain: A smuggler (first and only appearance)
Synopsis: Dane Dorrance’s father gives each of the Sea Devils a chance to earn his frogman flippers by competing for who can pull off the greatest underwater achievement.

Story: “The Undersea Prison” (16 pages)
Editor, writer: Robert Kanigher
Artist: Russ Heath
Feature Characters: The Sea Devils
Intro: Prof. Moray, Mona Moray (only appearance for both)
Villains: An undersea race (first and only appearance)
Synopsis: The Sea Devils agree to help a girl diver try to locate her father, who has been missing for a month inside a rocket which has crashed into the sea, but all of them are kidnapped by a race of mermen.

Showcase No. 29
November-December 1960
Cover: Sea Devils vs. Horro on sea horse //Russ Heath (wash drawing)
Story: “The Last Dive of the Sea Devils” (13 pages)
Editor, writer: Robert Kanigher
Artist: Russ Heath
Feature Characters: The Sea Devils
Intro: Vasto (as a voice; only appearance)
Villain: Horro (first appearance; dies in this story)
Synopsis: The Sea Devils find themselves up against Horro, a giant Venusian tyrant with the aspect of King Neptune.

Story: “Undersea Scavenger Hunt” (12 pages)
Editor, writer: Robert Kanigher
Artist: Russ Heath
Feature Characters: The Sea Devils (next appear in SEA DEVILS #1)
Intro: T. T. Hartley (only appearance)
Villains: The Black Mantas (first and only appearance)
Synopsis: To win a boat to replace their recently wrecked one, the Sea Devils compete in a hunt to bring back the best underwater treasure.

Sea Devils No. 1
September-October 1961
Cover: Octopus Man vs. the Sea Devils //Russ Heath (wash drawing)
Story: “The Sea Devils Vs. the Octopus Man” (13 pages)
Editor, writer: Robert Kanigher
Artist: Russ Heath
Feature Characters: The Sea Devils (last appearance in SHOWCASE #29)
Intro: Wendal Wales (only appearance)
Villain: The Octopus Man (first and only appearance)
Synopsis: Hired to star in an underwater movie, The Octopus Man, the Sea Devils soon find themselves confronted by a real Octopus Man in the deep.

Story: “Secret of the Emerald Whale” (12 pages)
Editor: Robert Kanigher
Writer: Bob Haney
Artist: Russ Heath
Feature Characters: The Sea Devils
Intro: Capt. Bedford, Myra Bedford (only appearance for both)
Villains: Captain Shark, the Emerald Whale (first and only appearance for both)
Synopsis: The Sea Devils undertake a quest for the legendary Emerald Whale, only to find it and its pursuer frozen in an iceberg, from which both are soon liberated.

Sea Devils No. 2
November-December 1961
Cover: Mr. Neptune holding Sea Devils in a bottle //Russ Heath (wash drawing)
Story: “A Bottleful of Sea Devils” (12 pages)
Editor, writer: Robert Kanigher
Artist: Russ Heath
Feature Characters: The Sea Devils
Villain: Mr. Neptune (first and only apperarance)
Synopsis: On the trail of a stolen Navy invention, the Sea Devils are shrunken and placed in a bottle by the diabolical Mr. Neptune.

Story: “Star of the Sea” (13 pages)
Editor, writer: Robert Kanigher
Artist: Russ Heath
Feature Characters: The Sea Devils
Supporting Character: Pappy (a seal; first appearance; next appears in issue #10)
Synopsis: The Sea Devil’s pet seal Pappy, raised in captivity, is accidentally loosed into the sea, and the diving quartet goes to rescue him from danger, only to find Pappy returning the favor.

Sea Devils No. 3
January-February 1962
Cover: Sea Devils vs. an underwater siren and sea serpent //Russ Heath
Story: “Underwater Crime Wave” (13 pages)
Editor, writer: Robert Kanigher
Artist: Russ Heath
Feature Characters: The Sea Devils
Villains: G. Nakko, a gang of smugglers (first and only appearance for all)
Synopsis: Angered by their refusal to perform for him, wealthy G. Nakko kidnaps the Sea Devils and forces them to compete in an underwater arena, with Judy’s life at stake.

Story: “The Ghost of the Deep” (12 pages)
Editor: Robert Kanigher
Writer: Bob Haney
Artist: Russ Heath
Feature Characters: The Sea Devils
Intro: Circe Smith (only appearance)
Villains: An underwater siren and a sea serpent (first and only appearance for both)
Synopsis: The male Sea Devils are entranced by the spell of a sea siren, and only Judy has a chance to save them from it.

Sea Devils No. 4
March-April 1962
Cover: Sea Devils encircled by army of fish //Russ Heath
Story: “The Sea of Sorcery” (13 pages)
Editor, writer: Robert Kanigher
Artist: Russ Heath
Feature Characters: The Sea Devils
Intro: A mermaid and a merman (only appearance for both)
Synopsis: When three of the Sea Devils have strange encounters underwater and cannot credit their senses, Dane Dorrance sets out to prove the truth of their adventures.

Story: “The Secret of Volcano Lake” (12 pages)
Editor: Robert Kanigher
Writer: Bob Haney
Artist: Russ Heath
Feature Characters: The Sea Devils
Intro: Takal (only appearance)
Villain: Katko (first and only appearance)
Synopsis: After rescuing a prince from a watery death, the Sea Devils team up with him to defeat his rival, Katko.

Sea Devils No. 5
May-June 1962
Cover: Sea Devils vs. a Mayan idol //Russ Heath / Jack Adler
Story: “The Creatures Who Stole the Seven Seas” (19 pages)
Editor, writer: Robert Kanigher
Artist: Russ Heath
Feature Characters: The Sea Devils
Villain: An alien (first and only appearance)
Synopsis: A flotilla of flying saucers from space steal the Earth’s oceans, and the Sea Devils with them.

Story: “Secret of the Plumed Serpent” (7 pages)
Editor: Robert Kanigher
Writer: Hank Chapman
Artist: Russ Heath
Feature Characters: The Sea Devils
Villain: Balchun (first appearance; dies in this story)
Synopsis: The Sea Devils, in search of a missing archaeologist, instead encounter a descendant of the ancient Mayans and his mechanical plumed serpent.

Sea Devils No. 6
July-August 1962
Cover: Sea Devils menaced by three-headed sea-dragon //Russ Heath / Jack Adler
Story: “The Flame-Headed Watchman” (25 pages)
Editor, writer: Robert Kanigher
Artist: Russ Heath
Feature Characters: The Sea Devils
Intro: A stranger, Cleopatra, Ulysses, Illa (only appearance for all)
Villains: Three sirens, Ferro, a barbarian army, a three-headed sea-dragon (first and only appearance for all)
Synopsis: A mysterious stranger visits the Sea Devils with assignments that take each of them to another world.

Sea Devils No. 7
September-October 1962
Cover: Sea Devils vs. a water alien //Russ Heath / Jack Adler
Story: “The Human Tidal Wave” (25 pages)
Editor, writer: Robert Kanigher
Artist: Russ Heath
Feature Characters: The Sea Devils
Intro: An astronaut (only appearance)
Villain: A water alien (first and only appearance)
Synopsis: In trying to rescue an astronaut, the Sea Devils meet an alien water-being who has come as the harbinger of an invading army.

Sea Devils No. 8
November-December 1962
Cover: Hand of Neptune’s Giant transforming Sea Devils into aquatic life //Russ Heath / Jack Adler
Story: “Curse of Neptune’s Giant” (25 pages)
Editor, writer: Robert Kanigher
Artist: Russ Heath
Feature Characters: The Sea Devils
Intro: Nurro, Serra (only appearance for both)
Villain: Neptune’s Giant (first appearance; dies in this story)
Synopsis: The Sea Devils agree to help a merman liberate his girlfriend from Neptune’s Giant, a being that has the power to turn men into fish.

Sea Devils No. 9
January-February 1963
Cover: Sea Devils fleeing Hroodo on giant eel //Russ Heath / Jack Adler
Story: “The Secret of the Coral Creature” (25 pages)
Editor, writer: Robert Kanigher
Artist: Russ Heath
Feature Characters: The Sea Devils
Villain: Hroodo (first appearance; probably dies in this story)
Synopsis: The Sea Devils, trapped underwater beneath an unexploded atomic bomb, are rescued by a coral giant who forces them to perform for his amusement.

Sea Devils No. 10
March-April 1963
Cover: Sea Devils fired upon by enemy frogmen //Russ Heath / Jack Adler
Story: “Four Mysteries of the Sea” (25 pages)
Editor, writer: Robert Kanigher
Artist: Russ Heath
Feature Characters: The Sea Devils
Supporting Character: Pappy (between issues #2 / 12)
Intro: The Deep Six Liars Club, the Martian Canals Liars Club, two mermaids (only appearance for all)
Other Character: Neptune (last appearance in WONDER WOMAN #131; next appears in issue #14)
Villains: Four pirates (first and only appearance)
Synopsis: After the Sea Devils are rejected from the Deep Six Liars Club for telling tales too incredible for even the members to believe, King Neptune angrily declares that all tall tales shall become true.

Sea Devils No. 11
May-June 1963
Cover: Giant hand smashing through undersea dome to endanger the Sea Devils //Irv Novick / Jack Adler
Story: “Sea of Nightmares” (25 pages)
Editor, writer: Robert Kanigher
Artist: Irv Novick
Feature Characters: The Sea Devils
Villains: Nightmare creatures (first and only appearance)
Synopsis: Living underwater in a domed house for a month, the Sea Devils find their minds are affected, that they hallucinate about monsters, and that their hallucinations come to life.

Sea Devils No. 12
July-August 1963
Cover: Sea Devils vs. magnetic creature //Irv Novick / Jack Adler
Story: “Threat of the Magnetic Menace” (25 pages)
Editor, writer: Robert Kanigher
Artist: Irv Novick
Feature Characters: The Sea Devils
Villain: A magnetic creature (first appearance; dies in this story)
Synopsis: After all of the Sea Devils have won Davy awards for heroic underwater deeds except Nicky, the other three opt to create situations in which their junior member can become a hero.  But Nicky sees through their ploys and rejects them, until the three others are genuinely endangered by a living magnet.

Sea Devils No. 13
September-October 1963
Cover: Sea Devils attacked by fireballs from Persian ship //Irv Novick / Jack Adler
Story: “The Secrets of Three Sunken Ships” (25 pages)
Editor: Robert Kanigher
Writer: France Herron
Pencillers: Joe Kubert (pgs. 1-9)
 Gene Colan (pgs. 10-17)
 Ross Andru (pgs. 18-25)
Inkers: Joe Kubert (pgs. 1-9)
 Gene Colan (pgs. 10-17)
 Mike Esposito (pgs. 18-25)
Feature Characters: The Sea Devils
Intro: Joe Kubert, Gene Colan, Ross Andru, Mike Esposito (of Earth-1; only appearance for all?), Captain English (only appearance)
Villains: Black Shark and his band, pirates, a Persian fleet, an alien fisherman (first and only appearance for all)
Synopsis: The Sea Devils are joined on dangerous assignments by artists from DC Comics.

Sea Devils No. 14
November-December 1963
Cover: Hercules vs. Neptune and the Sea Devils (on sea horses) //Russ Heath / Jack Adler
Story: “War of the Undersea Giants” (part 1; 6 pages)
 Part 2: “Battle of the Undersea Giants” (6 pages)
Editor: Robert Kanigher
Writer: France Herron
Artist: Irv Novick
Feature Characters: The Sea Devils
Intro: Irv Novick (of Earth-1)
Other characters: Zeus (last chronological appearance in WONDER WOMAN #162), Hera (between WONDER WOMAN #105 / 215), Neptune (last appearance in issue #10)
Villain: Hercules (between WONDER WOMAN #105 / 259)
Comment: The Hercules portrayed in this story is at variance with his portrayals in many other DC comics.
Synopsis: Accompanied by artist Irv Novick, the Sea Devils intervene in a battle between Hercules and Neptune to try and tip the outcome in the sea king’s favor.

Story: “Challenge of the Fish Champions” (13 pages)
Editor: Robert Kanigher
Writer: France Herron
Artist: Jack Abel
Feature Characters: The Sea Devils
Intro: Jack Abel (of Earth-1), two Junior Sea Devils (only appearance for all)
Villains: Karpas (first appearance; dies in this story), a merman (first and only appearance)
Synopsis: In order to raise money for equipment for the Junior Sea Devils, the diving quartet competes in an undersea race against the evil Karpas.

Sea Devils No. 15
January-February 1964
Cover: Sea Devils trying to free trapped sub from giant spider in spiderweb //Russ Heath / Jack Adler
Story: “Secret of the Sunken Sub” (25 pages)
Editor: Robert Kanigher
Writer: France Herron
Artist: Irv Novick
Feature Characters: The Sea Devils
Supporting Character: Prof. Walton (Nicky’s and Judy’s father; first and only appearance)
Other Character: Irv Novick (last appearance)
Synopsis: In order to exonerate Judy and Nicky’s professor father, the Sea Devils set out to find an experimental submarine which he has apparently lost.

Sea Devils No. 16
March-April 1964
Cover: The Sea Devils menaced by basilisk near giant ship’s masthead //Russ Heath / Jack Adler (wash drawing)
Story: “The Strange Reign of Queen Judy and King Biff” (12 pages)
Editor: Robert Kanigher
Writer:
Penciller: Bruno Premiani
Inker: Sheldon Moldoff
Feature Characters: The Sea Devils
Intro: Inhabitants of a magic island (only appearance)
Synopsis: The Sea Devils are taken by a giant wave to a walled island, on which Biff and Judy lose their memories and are declared king and queen of the island and Dane and Nicky become slaves.

Story: “Sentinel of the Golden Head” (13 pages)
Editor: Robert Kanigher
Writer: Hank Chapman
Penciller: Howard Purcell
Inker: Sheldon Moldoff
Feature Characters: The Sea Devils
Intro: Dalliope and her father (only appearance for both)
Synopsis: In the Mediterranean, the Sea Devils undertake the search for a giant golden head lost underwater to save a girl from being sacrificed to the gods of a volcano.

Sea Devils No. 17
May-June 1964
Cover: Dane Dorrance and Judy Waltons vs. underwater monster //Howard Purcell
Story: “The Impossible Maritime Menaces” (part 1; 8 pages)
 Part 2: “For Sale–the Earth” (8 pages)
 Part 3: “The Alien Allies” (9 pages)
Editor: George Kashdan
Writer: Arnold Drake?
Penciller: Howard Purcell
Inker: Sheldon Moldoff
Feature Characters: The Sea Devils
Villains: K’poora, aliens (first and only appearance for all)
Synopsis: Dane Dorrance finds himself the victim of hallucinations induced by alien invaders.

Sea Devils No. 18
July-August 1964
Cover: Transformed Sea Devils vs. sea monster //Howard Purcell / Sheldon Moldoff
Story: “The Creatures From the Sub-World” (part 1; 8 pages)
 Part 2: “The Sea Devil Creatures” (8 pages)
 Part 3: “The Doom of the Crusher Plant” (9 pages)
Editor: George Kashdan
Writer:
Penciller: Howard Purcell
Inker: Sheldon Moldoff
Feature Characters: The Sea Devils
Intro: An underwater race (all die in this story)
Villain: Captain Jared Hood (first and only appearance)
Synopsis: Trailing a band of strange underwater thieves, the Sea Devils emerge in a strange world and are physically changed into mer-creatures.

Sea Devils No. 19
September-October 1964
Cover: Dane Dorrance and Judy Walton vs. Dr. Deep and robots  //Howard Purcell
Story: “The Sea-Devil Robots” (24 pages)
Editor: George Kashdan
Writer:
Penciller: Howard Purcell
Inker: Sheldon Moldoff
Feature Characters: The Sea Devils
Intro: Captain Stark (only appearance)
Villain: Dr. Deep (first and only appearance)
Synopsis: Using a mind-transferring device of his own creation, Dr. Deep places the minds of Biff and Nicky in two robots, and Dane’s in the body of a small fish.

Sea Devils No. 20
November-December 1964
Cover: Sea Devils vs. two sea monsters //Howard Purcell
Story: “The Menace of the Reptile-Men” (part 1; 8 pages)
 Part 2: “Half-Human, Half-Clay” (8 pages)
 Part 3: “The Last Challenge” (9 pages)
Editor: George Kashdan
Writer:
Penciller: Howard Purcell
Inker: Sheldon Moldoff
Feature Characters: The Sea Devils
Intro: Reptile men (only appearance)
Villains: Lonnie, Will, and two other pirate divers (first and only appearance for all)
Synopsis: The Sea Devils pursue some reptile men who have attacked an oil rig, soon finding themselves in a parallel world where they are accused of a criminal deed.

Sea Devils No. 21
January-February 1965
Cover: Sea Devils vs. giant octopus //Howard Purcell
Story: “The Forty-Fathom Doom” (part 1; 8 pages)
 Part 2: “The Octopus With the Human Brain” (7 pages)
 Part 3: “Dr. Quad’s Secret Weapon” (10 pages)
Editor: George Kashdan
Writer:
Penciller: Howard Purcell
Inker: Sheldon Moldoff
Feature Characters: The Sea Devils
Villain: Dr. Quad (first and only appearance)
Synopsis: The Sea Devils stumble onto the lair of Dr. Quad, an evil scientist with disguise powers.
 

Sea Devils No. 22
March-April 1965
Cover: Sea Devils vs. Horro //Howard Purcell / Jack Adler (wash drawing)
Story: “Operation Sea Terror” (24 pages)
Editor: George Kashdan
Writer:
Penciller: Howard Purcell
Inker: Sheldon Moldoff
Feature Characters: The Sea Devils
Supporting Characters: Captain X (John Payton Dorrance; last appearance in SHOWCASE #28), the International Sea Devils (including Sikki; first appearance for all)
Intro: Man-Fish (origin; Juan Vallambrosa)
Cameo appearance: Adolf Hitler (in a portrait)
Villains: Nazis (in flashback), Horro II (first and only appearance; not to be confused with the character in SHOWCASE #29)
Comment: Captain X gives his name as “John Payton” in this story.  Since he is Dane’s father, it is probable that those are his first and middle names.  Since John Dorrance did appear in SHOWCASE #27-28, the effect that caused him to be confined to his submarine probably did not take over until after those issues.
Synopsis: The Sea Devils are induced by one of their Indian adherents to intervene in a battle between the mysterious sub commander, Captain X, and his foe, the shape-changing merman, Man-Fish.

Sea Devils No. 23
May-June 1965
Cover: Sea Devils being sucked inside underwater building //Howard Purcell / Jack Adler
Story: “The Outcasts of the Seven Seas” (25 pages)
Editor: George Kashdan
Writer:
Penciller: Howard Purcell
Inker: Sheldon Moldoff
Feature Characters: The Sea Devils
Supporting Characters: International Sea Devils (including Brad)
Intro: Neptimus Krono, Aristides Krono I (in flashback; only appearance for both)
Villains: Aristides Krono II and his men (first and only appearance for all)
Synopsis: Investigating the sabotage of a submerged weapons control capsule, the Sea Devils encounter a villain who makes them face their greatest fears.

Sea Devils No. 24
July-August 1965
Cover: Sea Devils vs. sea monster on submarine //Howard Purcell / Jack Adler
Story: “The Vengeance of Man-Fish” (25 pages)
Editor: George Kashdan
Writer:
Penciller: Howard Purcell
Inker: Sheldon Moldoff
Feature Characters: The Sea Devils
GS: Man-Fish (between issues #22 / 26)
Supporting Characters: Captain X (between issues #22 / 26), International Sea Devils (including Sikki)
Villain: A sea monster (first and only appearance)
Synopsis: Dane Dorrance, finding his father’s submarine empty and Man-Fish swimming away from it, concludes the amphibian has killed his father and vows vengeance.

Sea Devils No. 25
September-October 1965
Cover: Sea Devils vs. crocodile //Howard Purcell
Story: “Operation Black Gold” (25 pages)
Editor: George Kashdan
Writer:
Penciller: Howard Purcell
Inker: Sheldon Moldoff
Feature Characters: The Sea Devils
Supporting Characters: International Sea Devils (including Molo and Miguel)
Intro: Don Matanzas, Jose Cantral (only appearance for both)
Villains: El Supremo and his men (first and only appearance for all)
Synopsis: Trying to repair sabotaged oil rigs in South America with their robot headquarters, the Sea Devils are apparently betrayed by one of the International Sea Devils.

Sea Devils No. 26
November-December 1965
Cover: Gamester’s hand controlling Man-Fish to attack bound Dane Dorrance (two vignettes)  //Howard Purcell
Story: “The Perilous Pranks of the Gamester” (24 pages)
Editor: George Kashdan
Writer:
Penciller: Howard Purcell
Inker: Sheldon Moldoff
Feature Characters: The Sea Devils
GS: Man-Fish
Supporting Character: Captain X
Villains: The Gamester and his crew (first appearance for all; all probably die in this story)
Synopsis: The Gamester manipulates Man-Fish into attacking Dane in order to force Captain X to reveal the source of a magnetic field that can restore youth.

Sea Devils No. 27
January-February 1966
Cover: Diatom turning into monster and attacking Dane Dorrance and Judy Walton (four vignettes) //Howard Purcell / Jack Adler
Story: “Menace of the Micro-Monsters” (25 pages)
Editor: George Kashdan
Writer:
Penciller: Howard Purcell
Inker: Sheldon Moldoff
Feature Characters: The Sea Devils
Supporting Characters: International Sea Devils (including Nikki and Molo)
Intro: Petey Eldridge, the Tadpoles (including Martin; first and only apperarance for all)
Villains: Roy Eldridge (first appearance; dies in this story), Von Shlager, Ciggie (first and only appearance for both)
Synopsis: The Sea Devils face creatures of giant plankton, magnified by an ex-Nazi war criminal.

Sea Devils No. 28
March-April 1966
Cover: Manosaur vs. Dane Dorrance and Judy Walton //Howard Purcell
Story: “The Super-Secret of the Human Hybrid” (24 pages)
Editor: George Kashdan
Writer:
Penciller: Howard Purcell
Inker: Sheldon Moldoff
Feature Characters: The Sea Devils
GS: Man-Fish (between issues #26 / 30)
Supporting Characters: Captain X (next appears in issue #30), International Sea Devils
Intro: R. L. (only appearance)
Villain: Professor Rend, a manosaur, a manosaur robot (first and only appearance for all)
Synopsis: After the Sea Devils help a professor excavate a manosaur on the ocean floor, it comes to life and abducts Judy.

Sea Devils No. 29
May-June 1966
Cover: Sea Devils vs. monster and Golden Goddess //Howard Purcell / Jack Adler
Story: “Captives of the Golden Goddess” (24 pages)
Editor: George Kashdan
Writer:
Penciller: Howard Purcell
Inker: Sheldon Moldoff
Feature Characters: The Sea Devils
Supporting Characters: International Sea Devils
Villains: The Golden Goddess (first and only appearance), Valdo, Lucas (first appearance for both; both die in this story)
Synopsis: The Sea Devils are captured by the Golden Goddess, ruler of an underground world, who wishes to make Dane her king and executre the rest of the team.

Sea Devils No. 30
July-August 1966
Cover: Sea Devils vs. Caesar //Howard Purcell / Jack Adler
Story: “A Gorilla Prowls the Deep Six” (25 pages)
Editor: George Kashdan
Writer:
Penciller: Howard Purcell
Inker: Sheldon Moldoff
Feature Characters: The Sea Devils (next appear in CHALLENGERS OF THE UNKNOWN #51)
Supporting Characters: Captain X (last appearance in issue #28; last appearance), International Sea Devils (including Molo; last appearance for all)
GS: Man-Fish (last appearance)
Intro: Prof. Adams (only appearance)
Comment: Shortly after this story the Sea Devils team up with the Challengers of the Unknown to fight the Sponge Man in CHALLENGERS OF THE UNKNOWN #51.
Villain: Caesar (a giant gorilla), two aliens (first and only appearance for all)
Synopsis: After a tiny monkey in a sunken space capsule is transformed into an intelligent, powerful, giant gorilla, Man-Fish offers to team up with him to gain revenge on Captain X.

Sea Devils No. 31
September-October 1966
Cover: Dane, Judy, and Nicky vs. monster (Biff)  //Howard Purcell / Jack Adler
Story: “The Day the Seas Went Wild” (25 pages)
Editor: George Kashdan
Writer:
Penciller: Howard Purcell
Inker: Sheldon Moldoff
Feature Characters: The Sea Devils (last appearance in CHALLENGERS OF THE UNKNOWN #51)
Intro: Two scientists (only appearance for both)
Synopsis: A meteorite transforms Biff into an underwater monster, whom the other Sea Devils believe they must destroy.

Sea Devils No. 32
November-December 1966
Cover: Sea Devils vs. Griffi-Saur  //Howard Purcell / Jack Adler
Story: “The Deep-Six Time Trap” (24 pages)
Editor: George Kashdan
Writer:
Penciller: Howard Purcell
Inker: Sheldon Moldoff
Feature Characters: The Sea Devils
Intro: Luv-El, Bantu (only appearance for both)
Villains: The Outsiders (not to be confused with the team introduced in BRAVE AND THE BOLD #200), a Griffi-Saur (first and only appearance for all)
Comment: Though it is indicated in this story that the future portions take place 1,000 years in the future, the date given is 2166, making it only 200 years from the Sea Devils’ time.
Synopsis: The Sea Devils go to the future to help a group of rebels overthrow the Outsiders, who have taken over the Earth and are liquefying its air.

Sea Devils No. 33
January-February 1967
Cover: Sea Devils vs. Sea Wolf and Manchine //Howard Purcell / Jack Adler
Story: “The Secret of the Sinister Sea Wolf” (24 pages)
Editor: George Kashdan
Writer:
Penciller: Howard Purcell
Inker: Sheldon Moldoff
Feature Characters: The Sea Devils
Villains: The Sea Wolf (first and only appearance), Manchine (first appearance; destroyed in this story)
Synopsis: The Sea Wolf, a costumed pirate, brazenly challenges the Sea Devils to capture him, and then captures them with the help of a super-computer, Manchine.

Sea Devils No. 34
March-April 1967
Cover: Sea Devils vs sea monster //Howard Purcell / Jack Adler
Story: “The Sea Devils vs. the Sea Angels” (24 pages)
Editor: George Kashdan
Writer: Bob Haney
Penciller: Chic Stone
Inker: Sheldon Moldoff
Feature Characters: The Sea Devils
Intro: The Sea Angels (Dingo, Stan, Pete, and a fourth member; only appearance for all)
Villains: Prof. Steed, Marlo Mitler (first and only appearance for both), two sea monsters (first appearance for both; both die in this story)
Synopsis: The Sea Devils encounter a group of prank-loving teenagers, the Sea Angels, who gain control of a sea monster which is apparently used to attempt a gold bullion theft.

Sea Devils No. 35
May-June 1967
Cover: Sea Devils vs. monster //Howard Purcell / Jack Adler
Story: “The Name of the Game is Death” (24 pages)
Editor: George Kashdan
Writer: Bob Haney
Penciller: Chic Stone
Inker: Sheldon Moldoff
Feature Characters: The Sea Devils (Dane Dorrance, Judy Walton (both next appear in DETECTIVE COMICS #486), Biff Bailey, Nicky Walton (both next appear in SHOWCASE #100))
Villains: Sea creatures from another dimension (first appearance for all; all die in this story)
Comment: Sometime after this story Dane Dorrance and Judy Walton get married and appear with Christopher Chance, the Human Target, in DETECTIVE COMICS #486.  Then the Sea Devils join the heroes of Earth against an alien invader in SHOWCASE #100, after which they appear as members of the Forgotten Heroes (sometimes, only Dane Dorrance being present) to team with Superman in ACTION COMICS #545 against Brainiac, in ACTION COMICS #552-553 against Vandal Savage, and in DC COMICS PRESENTS #77-78 against the Forgotten Villains.  Then the Sea Devils join the heroes of the Multiverse to fight the Anti-Monitor in CRISIS ON INFINITE EARTHS #5, 7, their last Earth-One appearance.
Synopsis: The Sea Devils believe that Dane has been transformed into a sea monster, and grieve when the U. S. military destroys it.