James Arnold Taylor as The Flash / Barry Allen (voice)

Troy Baker as Batman / Bruce Wayne (voice)

Nolan North as Superman / Clark Kent / Kal-El (voice) and Killer Croc / Waylon Jones (voice)

Dwight Schultz as Reverse-Flash / Eobard Thawne (voice)

Grey DeLisle as Wonder Woman / Diana Prince (voice) and Lois Lane (voice)

Eric Bauza as The Atom (voice), B'dg (voice) and Jimmy Olsen (voice)

Tom Kenny as Plastic Man / Patrick 'Eel' O'Brian (voice) and The Penguin / Oswald Cobblepot (voice)

Kevin Michael Richardson as Doctor Fate (voice) and Captain Cold / Leonard Snart (voice)

Khary Payton as Cyborg / Victor Stone (voice)

Phil LaMarr as Firestorm / Jason Rusch (voice)

Kate Micucci as Zatanna (voice)

Dee Bradley Baker as Captain Boomerang / Digger Harkness (voice) and Aquaman / Arthur Curry (voice)

Vanessa Marshall as Poison Ivy / Pamela Isley (voice)

Jason Spisak as The Joker (voice)

Audrey Wasilewski as Mayor (voice)