- Jerry Lewis
- Prof. Julius Kelp / Buddy Love
- Stella Stevens
- Stella Purdy
- Del Moore
- Dr. Mortimer S. Warfield
- Kathleen Freeman
- Millie Lemmon
- Med Flory
- Warzewski
- Norman Alden
- Football Player / Student
- Howard Morris
- Elmer Kelp
- Elvia Allman
- Edwina Kelp
- Milton Frome
- Dr. M. Sheppard Leevee
- Buddy Lester
- Bartender
- Marvin Kaplan
- English Student
- David Landfield
- College Student
- Skip Ward
- Football Player
- Julie Parrish
- College Student
- Henry Gibson
- Gibson - College Student
- Les Brown and His Band of Renown
- Themselves
- Les Brown
- Band Leader
- Murray Alper
- Gym Attendant
- Monya Andre
- Faculty Member
- Roger Bacon
- Student
- Todd Barron
- Boy in Bowling Alley
- Mel Berger
- Moon-Faced Man
- Shirley Blackwell
- Prom Dancer
- Hal Blaine
- Conga Player
- Nicky Blair
- Student
- Billy Bletcher
- Plumber
- Les Brown Jr.
- Student
- Brad Brown
- College Student
- Stumpy Brown
- Band Member
- Ivan Browning
- Faculty Member
- Mushy Callahan
- Cab Driver
- Hugh Cannon
- Man in Gym
- Seymour Cassel
- Bored Man
- Selette Cole
- College Student
- Lorinne Crawford
- Girl
- George DeNormand
- Faculty Member
- Robert Donner
- College Student
- Dominic Fidelibus
- College Student
- Fritz Ford
- Gym Member
- Joseph Forte
- Faculty Member
- Art Gilmore
- Narrator
- Gavin Gordon
- Clothing Salesman
- Bob Harvey
- College Student
- Terry Higgins
- Purple Pit Cigarette Girl
- Stephanie Hill
- Waitress
- Stuart Holmes
- Faculty Member at Senior Prom
- Jimmie Horan
- Birdman
- Robert Keys
- Policeman
- Richard Kiel
- Man in Gym
- Wallace Earl Laven
- Bored Girl
- Carl M. Leviness
- Faculty Member
- Gary Lewis
- Boy
- Charles Macari
- College Student
- John Macchia
- College Student
- Mike Mahoney
- Man in Bowling Alley
- Marilyn Malloy
- Girl
- Mickey Manners
- College Student
- William Meader
- Bartender
- Hollis Morrison
- Man
- Forbes Murray
- Faculty Member
- Suzanne Noel
- Girl
- Paddy O'Hara
- Nurse
- Susan Odin
- Cotton Pickin' Girl
- Bob Pane
- College Student
- Paul Power
- Faculty Member
- Emil Richards
- Musician - Percussionist
- Bill Richmond
- Man in Booth
- Clark Ross
- Faculty Member
- Michael Ross
- Weightlifter at Gym
- Phillip Shaw
- Man
- Bert Stevens
- Purple Pit Customer
- Kelly Stevenson
- Natalie
- Clay Tanner
- Man
- Judi Thor
- College Student
- Roger Torrey
- Football Player
- Max Trumpower
- Cop
- Doodles Weaver
- Rube
- Luree Wiese
- Faculty Member
- Dave Willock
- Purple Pit Customer
- Karen Yadley
- Girl
- Celeste Yarnall
- College Student
- Francine York
- College Student
