Susan Vance

Katharine Hepburn

David Huxley

Cary Grant

Major Horace Applegate

Charlie Ruggles

Constable Slocum

Walter Catlett

Aunt Elizabeth Random

May Robson

Mr. Gogarty

Barry Fitzgerald

Dr. Fritz Lehman

Fritz Feld

Roustabout

Jack Carson

Hannah Gogarty

Leona Roberts

Motorcycle Cop at Jail (uncredited)

Ward Bond

Mr. Peabody

George Irving

Doorman

Stanley Blystone

Mrs. Lehman

Tala Birell

Elmer

John Kelly

Alice Swallow

Virginia Walker

David's Caddy (uncredited)

William Benedict

Joe (uncredited)

Billy Bevan

Zoo Official (uncredited)

Edward Gargan

Zoo Official

Buck Mack

Hatcheck Girl (uncredited)

Judith Ford

(uncredited)

Paul Guilfoyle

Caddy

Buster Slaven

Maid

Geraldine Hall

Midget (uncredited)

Karl 'Karchy' Kosiczky

George (uncredited)

Skippy

Joe

Frank Marlowe

Mac

Pat West

Delivery Man (uncredited)

Jack Gardner

Circus Manager

Richard Lane

Waiter (uncredited)

Herschel Graham

Circus Barker

Frank M. Thomas

Dancer

Ruth Alder

Deputy

Pat O'Malley

Mrs. Peabody

Adalyn Asbury

Cigarette Girl

Jeanne Martel

Louis, Headwaiter

George Humbert

Professor La Touche

D'Arcy Corrigan

Jonathan Hale

George the Dog

Asta the Dog