The New Adventures of Mighty Mouse and Heckle & Jeckle

Lou Scheimer

Mighty Mouse (voice)

Norm Prescott

Theodore H. Bear (voice)

Frank Welker

Heckle & Jeckle / Quacula (voice)

Alan Oppenheimer

Oil Can Harry / Swifty / Narrator (voice)

Diane Pershing

Pearl Pureheart (voice)