Jack Lemmon

Felix Ungar

Acting

Walter Matthau

Oscar Madison

Acting

John Fiedler

Vinnie

Acting

Herb Edelman

Murray

Acting

David Sheiner

Roy

Acting

Monica Evans

Cecily

Acting

Carole Shelley

Gwendolyn

Acting

Iris Adrian

Waitress

Acting

Billie Bird

Chambermaid (uncredited)

Acting

Angelique Pettyjohn

Go-go Dancer (uncredited)

Acting

Heywood Hale Broun

Sports Journalist (uncredited)

Acting

Larry Haines

'Speed'

Acting