Orka is a fictional character appearing in American comic books published by Marvel Comics. The character was created by Roy Thomas and Marie Severin, and has a killer whale theme. Orka primarily appears as a villain fighting the Avengers, the Fantastic Four, She-Hulk, and the Defenders, and also appears as a member of Heroes for Hire. Publication history Orka first appears in Prince Namor, the Sub-Mariner #23 (March 1970) and was created by Roy Thomas and Marie Severin. Fictional character biography Orka was originally an Atlantean soldier in the army of Warlord Krang, and aids the renegade Krang when he attempts to usurp the Atlantean throne from Namor. When this attempt fails, Orka goes into exile from Atlantis with Krang. Orka is then chosen to be the test subject of Dr. Dorcas, the marine scientist who created Tiger Shark, one of Namor's arch foes. Courtesy of a belt with a psionic amplifier, Orka is given the power of a killer whale, and aids Krang once more against Namor. The character skirmishes with fellow creation Tiger Shark, and the pair cause an undersea avalanche that buries them for several months. Orka eventually freed himself and allies with the other-dimensional Virago, and after battling Namor twice is defeated. The Brand Corporation (a subsidiary of Roxxon Energy Corporation) summon Orka with the aid of the Serpent Crown, and in exchange for his aid is augmented: the character's size is increased to tall and his natural abilities are increased, eliminating the need for the psionic belt. Orka is sent on a mission that brings him into conflict with superhero team the Avengers, with Thunder God Thor knocking him unconscious. When the Atlantean barbarian Attuma takes over the city of Atlantis, Orka is pardoned from his exile and joins the Imperial Army. Part of an invasion force that attacks the surface world, Orka battles the Avengers and the Fantastic Four, but is defeated by heroine She-Hulk and the Black Panther and imprisoned. Orka escapes imprisonment and joins marine team Deep Six (also consisting of Attuma, Nagala, Piranha, Sea Urchin and Tiger Shark). The group attack the United States and battles the Avengers and the People's Protectorate and are eventually defeated. Orka features in several other Marvel titles such as Fantastic Four She-Hulk and the Defenders. After the events of the Civil War, Orka features in the title Heroes for Hire and joins the team (also