|Voiced by:||Peter Scolari|
John Hamner was a guard at the Gotham Zoo.
Hamner was approached by an unknown party about two Alaskan timberwolves at the zoo. He was bribed to leave the wolves' cages unlocked. However, the same person who paid Hamner sent a giant wolf creature to kill him and tie up loose ends. He tried to get away, but he was knocked out. Batman's intervention saved Hamner's life, though the wolf did manage to throw him in the water. He came to, but when he saw Batman, he fainted again. Detective Bullock did some some investigating and after learning the motive behind the attack, he arrested Hamner.