Steve Martin
Navin R. Johnson
Bernadette Peters
Marie Kimble Johnson
Catlin Adams
Patty Bernstein
Mabel King
Mother
Richard Ward
Father
Carl Gottlieb
Iron Balls McGinty
Bill Macy
Stan Fox
M. Emmet Walsh
Madman
Dick O'Neill
Frosty
Maurice Evans
Hobart
Helena Carroll
Hester
Ren Woods
Elvira
Pepe Serna
Punk #1
Sonny Terry
Blues Singer
Brownie McGhee
Blues Singer
Jackie Mason
Harry Hartounian
Gene LeBell
Con Man
Carl Reiner
Self
Larry Hankin
Circus Hand (uncredited)
Howard Hesseman
Carnival Worker (uncredited)
Rob Reiner
Truck Driver Picking Up Navin (uncredited)
Gailard Sartain
Guy with Cracked Airplane Seats (uncredited)