Diedrich Bader
Ace (voice) / Batmongoose (voice)

David Kaye
Krypto (voice) / Supermanatee (voice)

Stephanie Sheh
Cat Woman (voice) / Cat Woman / Heavy Woman (voice)

Kevin Michael Richardson
The Croaker (voice) / Batman (voice)

Armin Shimerman
Superman (voice) / Jokerfish (voice)

Maria Bamford
Robin Robin / Batcow (voice) / Robin Robin (voice)

Kirk Thornton
Bane (voice) / Bat Man / Bane (voice)

Tom Kenny
Plastic Man (voice)

Eric Bauza
Narrator (voice)

Lauren Tom
Wonder Wombat (voice)

Jason Marsden
The Flish (voice)

Elisha Yaffe
B'Dg (voice)

Debra Wilson
Aquacow / Jumpa (voice)