Orca
Orca as depicted in Nightwing (vol. 4) #12 (March 2017). Art by Marcus To (penciller/inker) and Chris Sotomayor (colorist).
Publication information
Publisher	DC Comics
First appearance	Batman #579 (July 2000)
Created by	Larry Hama (writer) Scott McDaniel (artist)
In-story information
Alter ego	Grace Balin Dean Toye
Species	Metahuman
Team affiliations	Rogues Gallery United States Military Aquamarines
Abilities	(Both): Superhuman strength, stamina, durability, reflexes, and swimming Enhanced olfactory sense Sharp fangs and claws (Balin): Marine biology Gene therapy (Toye): Transformation Military mastery

Orca is the name of two fictional anti-hero characters who appear in American comic books published by DC Comics, commonly known as one of the adversaries to the superhero Batman.

The Grace Balin incarnation of Orca first appeared in Batman #579 (July 2000) and was created by Larry Hama and Scott McDaniel.^[1]

The Dean Toye incarnation of Orca first appeared in Aquaman (vol. 8) #12 (February 2017), and was created by Dan Abnett and Philippe Briones.

Grace Balin was a marine biologist who was paralyzed in an accident and experimented with orca tissue to regain her mobility, transforming into a monstrous orca hybrid. After battling Batman, she is forced into an underwater cave and begins to revert to normal, forcing Batman to give her a serum to permanently transform her into Orca and prevent her from drowning.^[2][3] In the One Year Later event, she is discovered to have died under unspecified circumstances.^[4]

In "DC Rebirth", Orca appears alive as a member of the Whale's Enders and an enemy of Nightwing.^{[5][6][7][8][9][10][11]}

"DC Rebirth" introduced a separate Orca, Dean Toye, a sergeant who transformed himself into an orca hybrid to combat the forces of Atlantis.^[12]

Both Orcas possess immense physical attributes, an enhanced sense of smell, and the ability to operate underwater.^[13][14][15] However, they must periodically rehydrate themselves to avoid drying out.

• The Grace Balin incarnation of Orca appears in The Lego Batman Movie, voiced by Laura Kightlinger.
• The Grace Balin incarnation of Orca appears in Lego Dimensions via The Lego Batman Movie DLC pack.
• The Grace Balin incarnation of Orca appears as a character summon in Scribblenauts Unmasked: A DC Comics Adventure.^[16]
• The Grace Balin incarnation of Orca appears in the Injustice 2 prequel comic as a member of Ra's al Ghul's Suicide Squad and lover of squad-mate Killer Croc, who she later has a child with and leaves the Squad to live a normal life.^[17][18]