Joker creates a toxin that affects only fish, mutating them into Joker fish. Then, he targets innocent men who refuse to copyright his Joker fish. The Joker also captures Harvey Bullock, and Batman must rescue him and foil the Clown Prince of Crime's insane scheme.
Joker creates a toxin that affects only fish, mutating them into Joker fish. Then, he targets innocent men who refuse to copyright his Joker fish. The Joker also captures Harvey Bullock, and Batman must rescue him and foil the Clown Prince of Crime's insane scheme.
Guest Cast

Mari Devon
voices Summer Gleeson
Mark Hamill
voices The Joker
Richard Moll
voices Computer
Pat Fraley
voices Jest
Bob Hastings
voices HenchmanCast Appearances

Kevin Conroy
voices Batman
Efrem Zimbalist, Jr.
voices Alfred
Bob Hastings
voices DriverEpisode Discussion
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