O Professor Aloprado
Voltar
Jerry LewisProfessor Julius F. Kelp / Buddy Love / Baby Kelp
Stella StevensStella Purdy
Del MooreDr. Hamius R. Warfield
Henry GibsonGibson, College Student
Kathleen FreemanMillie Lemmon
Richard KielMan in Gym (sem créditos)
Norman AldenFootball Player
Howard MorrisMr. Elmer Kelp
Elvia AllmanEdwina Kelp
Milton FromeDr. M. Sheppard Leevee
Doodles WeaverRube
Murray AlperGym Attendant (sem créditos)
Buddy LesterBartender
Med FloryFootball Player
Seymour CasselBored Man
Stephanie HillWaitress (sem créditos)
Marvin KaplanEnglish Student
Skip WardFootball Player
Billy BletcherPlumber (sem créditos)
Robert DonnerCollege Student (sem créditos)
Art GilmoreNarrator (voz) (sem créditos)