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

Dick Anthony Williams

Taj

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

Carl Reiner the Celebrity

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)

Lenny Montana

Con Man

William Schallert

Judge M.A. Loring

David Landsberg

Bank Manager

Domingo Ambriz

Father De Cordoba

Richard Foronjy

Con Man

Frances E. Williams

Grandma Johnson

Trinidad Silva

Punk

Ken Magee

Carnival Rube

Alfred Dennis

Irving

Lillian Adams

Tillie

Maurice Marsac

French Waiter

Fred Lerner

Con Man