
Harley Quinn
Nick / Grandpa (voice) · Nick / Goon 1 (voice)

Charles Michael "Charlie" Adler (born February 20, 1956) is an American voice actor and voice director. His most famous voice credits include The Smurfs, Brandy and Mr. Whiskers, Tiny Toon Adventures, SWAT Kats: The Radical Squadron, Cow and Chicken, Aaahh!!! Real Monsters, I Am Weasel and Rocko's Modern Life.
Biography from Charlie Adler on Wikipedia, available under CC BY-SA 4.0. View contributors.
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Nick / Grandpa (voice) · Nick / Goon 1 (voice)

Production

Yokai (voice)

Director

M.O.D.O.K. (voice)

Cow / Chicken / The Red Guy / I.R. Baboon (voice)

Mr. Adler (voice)

Additional Voices (voice)

Igor (voice) · Igor (voice), Moe the Ghost / Worker / Ghost #1 / Bus Driver (voice), Street Theatre Teacher (voice), The Magician's Hat (voice) · Moe the Ghost / Worker / Ghost #1 / Bus Driver (voice) · Street Theatre Teacher (voice) · The Magician's Hat (voice)

Professor Spooky (voice) · Ickis / Cyclops Monster / Ghost (voice)

Dripple (voice)

Additional Voices (voice)