male
Fin Harris, the animal-born mutant dolphin, is a common enemy in Teenage Mutant Ninja Turtles: Mutants Unleashed.
Fin Harris (TMNT: Mutants Unleashed)
Dolphin/Orca
for Dolphin/Orca in Fictional animals by species
Suggested by matiasramonsanchez
Obviously, don't nominate any human characters. Hybrids like Cheetah or The Lizard are okay, as are shapeshifters with one set animal form (eg Professor McGonagall.)
