Cast
Mel Blanc
Raven / Dr. Jekyll / Giant Bookworm (voice) (uncredited)
Frank Elmquist
Various (voice) (uncredited)
Crew
Hugh Harman
Director
(Directing)
Friz Freleng
Director
(Directing)
Jack Cosgriff
Story
(Writing)
Charles McGirl
Story
(Writing)
Hugh Harman
Producer
(Production)
Scott Bradley
Music Director
(Sound)