Melvyn Douglas Jerome 'Jerry' Marvin

Ruth Hussey Professor Susan Drake

Ellen Drew Babe Marvin

Charles Coburn Professor Drake

John Hubbard Tom Drake

Harvey Stephens Dr. Cassell

Theresa Harris Hattie

Hooper Atchley Ticket Man (uncredited)

Irving Bacon Doorman (uncredited)

Brooks Benedict Concert Attendee (uncredited)

George Beranger Waiter (uncredited)

Betty Blythe Minor Role (uncredited)

Lloyd Bridges Taxi Driver (uncredited)

Barbara Brown Shipboard Passenger (uncredited)

Hobart Cavanaugh Shipboard Passenger (uncredited)

Grace Darmond Minor Role (uncredited)

Thornton Edwards Cuban Driver (uncredited)

Bob Evans Black Man (uncredited)

Edward Fielding Dr. Mandel (uncredited)

Martín Garralaga Cuban Driver (uncredited)

Lawrence Grant Dr. Holgarth (uncredited)

Chuck Hamilton Sailor (uncredited)

Sam Harris Concert Attendee (uncredited)

Arthur Stuart Hull Shipboard Passenger (uncredited)

Crauford Kent Dr. Jenkins - Ship's Doctor (uncredited)

Paul Lopez Cuban Official (uncredited)

George McKay Steward (uncredited)

Paul McVey Minor Role (uncredited)

John Merton Officer (uncredited)

Harold Miller Shipboard Passenger (uncredited)

Forbes Murray Minor Role (uncredited)

Pedro Regas Cuban Driver (uncredited)

Addison Richards Middle-Aged Man in Jerry's Stateroom (uncredited)

Cyril Ring Shipboard Passenger (uncredited)

Ronald R. Rondell Shipboard Passenger (uncredited)

Cosmo Sardo Shipboard Passenger (uncredited)

Larry Steers Departing Shipboard Passenger (uncredited)

Roland Varno Steward (uncredited)

Juan Varro Cuban Driver (uncredited)

Lloyd Whitlock Customer (uncredited)

Isabel Withers Middle-Aged Woman in Jerry's Stateroom (uncredited)

Frank Yaconelli Hat Vender (uncredited)

Edward Biby

John Holland