Joker



The Joker (voiced by Frank Welker) is Batman's arch foe. He founded the Royal Flush Gang, and took the identity of Ace. He was behind a plot to help Darkseid take over the earth, beginning with Metropolis. But after Ten's betrayal, the plan was a failure, but although Darkseid and his minions escaped back to Apokolips, Joker and his Royal Flush Gang are captured.

Episode Appearance
SPTGG: The Wild Cards