Harley Quinn

Kaley Cuoco

Harley Quinn (voice)

Lake Bell

Poison Ivy (voice)

Jason Alexander

Sy Borgman (voice)

Diedrich Bader

Batman (voice)

Giancarlo Esposito

Lex Luthor (voice)

Sean Giambrone

Joshua (voice)

Wayne Knight

The Penguin (voice)

Ron Funches

King Shark (voice)

Howie Mandel

Howie Mandel (voice)

George López

George Lopez (voice)

Billy Bob Thornton

Billy Bob Thornton (voice)

James Gunn

James Gunn (voice)

Cathy Ang

Golden Glider (voice)

Alfred Molina

Mr. Freeze / Stew (voice)

Sanaa Lathan

Catwoman (voice)

Larry Owens

Music Meister (voice)

Sam Richardson

Swamp Thing (voice)

Matt Ryan

Constantine (voice)