Frank Gorshin

Daffy Duck / Foghorn Leghorn (voice)

Thurl Ravenscroft

Narrator (voice)

Eric Goldberg

Marvin the Martian / Tweety Bird / Porky Pig (voice)

Jim Cummings

Tasmanian Devil (voice)

Bob Bergen

Porky Pig (archive footage)

Paul Julian

Road Runner (voice) (archive sound) (uncredited)