All the water breathers.
humanoids
semi-humanoids
mermaids and mermen
sea monsters
sea creatures
sea animals
scuba divers
fish-like robots
creatures that live in the water even if they don't breathe water.
Watercraft
Sailors and captains of seafaring ships.
DC Comics'King of the Seas.
Marvel's King of the Seas.
A sea creature from Impact Comics.
A dolphin from Gold Key Comics.
A human with a super powered scuba diving outfit from Image Comics.
A water breathing character from DC Comics.
An Atlantean from Marvel Comics.
A water breather from Wildstorm/DC Comics.
A dolphin from video games and comics.
A super scuba diver from the Centurions Power X Treme cartoons and comics.
An Atlantean from DC Comics.
An Atlantean from Marvel Comics.
An Atlantean from Skybound/ Image Comics.
A dolphin from the SeaQuest DSV TV series and comics.
A scuba diver from DC's Sea Devils team.
Aquaman's enemy from DC Comics.
Namor's enemy from Marvel Comics.
An Atlantean from Skybound/ Image Comics.
Aquaman's pet octopus from DC Comics.
A scuba diver from the G. I. Joe team.
An Atlantean from DC Comics.
An Atlantean from Marvel Comics.
An Atlantean from Skybound/ Image Comics.
One of Aquaman's pets from DC Comics.
A Transformer with a shark beast mode from the Transformers universe.
An Atlantean from DC Comics.
An Atlantean from Marvel's 6706 Universe.
An aquatic character from the Masters of the Universe.
Aqualad's seahorse from DC Comics.
A scuba diver from DC's Sea Devils team.
An Atlantean from DC Comics.
An Atlantean mutant from Marvel Comics.
A water breathing character from TMNT.
Aquaman's seahorse from DC Comics.
A scuba diver from the G. I. Joe team.
An Atlantean from DC Comics.
An Atlantean from Marvel Comics.
A shark man from Image Comics.
Aquaman's walrus friend from DC Comics.
A Transformer with a shark beast mode from the Transformers universe.
An Atlantean from DC Comics.
An Atlantean from Marvel Comics.
A sub-mariner character from Comico Comics' Elementals.
Aquaman's walrus friend from DC Comics.
An oceanographer with a suit of powered armor for underwater adventure from Marvel Comics.
An Atlantean from DC Comics.
An Atlantean from Marvel Comics.
An undersea character from Disney's "The Little Mermaid".
The dolphin that saved and raised Aquaman from DC Comics.
A scuba diver from DC's Sea Devils team.
An Atlantean from DC Comics.
An Atlantean from Marvel Comics.
A sub-mariner character from Aspen MLT Comics.
One of Aquaman's dolphins from DC Comics.
The G.I. Joe deep water diving specialist
An Atlantean from DC Comics.
An Atlantean from Marvel Comics.
A sub-mariner character from TMNT/ Archie comics.
Moby Duck's pet dolphin from Disney.
A Maximal that transforms into a sea creature from the Transformers Beast Wars series.
An Atlantean from DC Comics.
An Atlantean from Marvel Comics.
An aquatic henchmen of Skeletor from Masters of the Universe.
A whale from the novel and later movies and comic books.
A deep sea diver from DC Comics who wears a specially designed diving suit.
An Atlantean from DC Comics.
An Atlantean from Marvel Comics.
A sub-mariner character from Image Comics.
A shark that helps Aqualad and Aquaman from DC Comics.
A scuba diver from DC's Sea Devils team.
An Atlantean from DC Comics.
An Atlantean from Marvel Comics.
Ariel's father from the Disney version of "The Little Mermaid".
The crazy shark from the movies and comics.
The G.I. Joe deep water diving specialist (This profile of Deep Six is most likely meant to be the same as the entry for Deep Six [no dash])
An Atlantean from DC Comics.
An Atlantean from Marvel Comics.
A Street Shark from the cartoon and Archie Comics.
A giant crab monster from Marvel Comics.
A Predacon warrior from the Transformers: Beast Wars series.
An Atlantean from DC Comics.
A sub-mariner from Marvel Comics.
A submariner character from Entity Comics.
The legendary sea monster from Norse mythology.
A Marvel character with a suit of power armor used for undersea work.
An Atlantean from DC Comics.
An Aquaman imitator from one of Marvel's alternate universes.
A sub-mariner movie monster that has appeared on comic books.
Ariel's fish friend from Disney's The Little Mermaid.
A scuba diver from DC Comics.
An Atlantean from DC Comics.
A sub-mariner character from Marvel Comics.
A Street Shark from the cartoon and Archie Comics.
A cybernetic lobster from Marvel Comics.
The scuba diving branch of the Cobra army from the G.I. Joe universe.
A mutated tiger shark that battles the Green Lantern in DC Comics.
A sub-mariner character from Marvel Comics.
Disney's version of "The Little Mermaid".
A mutant cyborg lobster from Marvel Comics.
The gestault form of the Decepticon Seacons team from the Transformers universe.
