Cary Grant

Barnaby Fulton

Ginger Rogers

Edwina Fulton

Charles Coburn

Oliver Oxley

Marilyn Monroe

Lois Laurel

Hugh Marlowe

Hank Entwhistle

Henri Letondal

Jerome Kitzel

Robert Cornthwaite

Dr. Zoldeck

Larry Keating

G.J. Culverly

Douglas Spencer

Dr. Brunner

Esther Dale

Mrs. Rhinelander

George Winslow

Little Indian

Harry Carey, Jr.

Reporter (uncredited)

Marjorie Holliday

Nico Minardos

Man at Pool

Charlotte Austin

Student (uncredited)

Russ Clark

Policeman (uncredited)

George Eldredge

Mr. Peabody (uncredited)

Kathleen Freeman

Mrs. Brannigan - Neighbor (uncredited)

Dabbs Greer

Cabbie (uncredited)

Howard Hawks

Man in Opening (voice) (uncredited)

Rudy Lee

Boy (uncredited)

Emmett Lynn

Gus (uncredited)

Paul Maxey

Board Member (uncredited)

Ray Montgomery

Policeman (uncredited)

Jerry Paris

Scientist (uncredited)

Maudie Prickett

Clerk (uncredited)

Gil Stratton

Yale Man (uncredited)

Ruth Warren

Laundress (uncredited)