Toby Huss

as Heckle (voice)

Bobcat Goldthwait

as Jeckle (voice)

Dee Bradley Baker

as Dinky Duck / Mighty Mouse / Sidney (voice)

Billy West

as Deputy Dawg / Stanley / Creeper (voice)

Charlie Adler

as Vincent Van Gopher (voice)

Rob Paulsen

as Muskie / Cleo (voice)

Haley Joel Osment

as Tom Terrific (voice)