Jean Arthur as Mary Smith

Edward Arnold as J.B. Ball

Ray Milland as John Ball Jr.

Mary Nash as Mrs. Jenny Ball

Franklin Pangborn as Van Buren

Luis Alberni as Mr. Louis Louis

Barlowe Borland as Mr. Gurney

William Demarest as Wallace Whistling

Andrew Tombes as E.J. Hulgar

Esther Dale as Lillian

Harlan Briggs as Magazine Office Manager

William B. Davidson as Mr. Hyde

Nora Cecil as Miss Swerf

Robert Greig as Butler

Lee Bowman as Motorcycle Policeman (uncredited)

Vernon Dent as First Partner (uncredited)

Marsha Hunt as Girl Getting Coat Dropped on Her at Finale (uncredited)

Dennis O'Keefe as Office Manager (uncredited)

Stanley Andrews as Police Captain Jackson (uncredited)

Gertrude Astor as Saleswoman (uncredited)

Richard Barbee as Third Partner (uncredited)

Benny Bartlett as Newsboy (uncredited)

Wilson Benge as Neighboring Butler (uncredited)

Sidney Bracey as Hornsby - Mary's Chauffeur (uncredited)

Don Brodie as Automobile Salesman (uncredited)

Ethel Clayton as Undetermined Secondary Role (uncredited)

Dora Clement as Saleslady (uncredited)

Lois Clinton as Brunette Woman (uncredited)

Tom Coleman as Doubledecker Bus Conductor (uncredited)

Elsa Connor as Undetermined Role (uncredited)

George Cowl as Bank President (uncredited)

Virginia Dabney as Blonde Woman (uncredited)

Hal K. Dawson as Jeweler (uncredited)

John Dilson as Nervous Hotel Registrant (uncredited)

Lester Dorr as Stock Investor (uncredited)

Florence Dudley as Cashier (uncredited)

Harold Entwistle as Elevator Man (uncredited)

Amelia Falleur as Housemaid (uncredited)

Jesse Graves as Graves - J.B. Ball's Porter (uncredited)

Hal Greene as Bellhop (uncredited)

Robert Haines as Hulgar Stock Tally Man (uncredited)

Robert Homans as Private Guard (uncredited)

Arthur Hoyt as Jeweler (uncredited)

Helen Huntington as Stenographer (uncredited)

Olaf Hytten as Joseph aka Justin - Houseman (uncredited)

Adia Kuznetzoff as Bum (uncredited)

Lillian Lawrence as Magazine Office Worker (uncredited)

Carl M. Leviness as Automat Customer (uncredited)

Kathleen Hope Lewis as Stenographer (uncredited)

Nick Lukats as Bum in Automat (uncredited)

John Marshall as Osric (uncredited)

Frank McLure as Office Worker (uncredited)

Lu Miller as Housemaid (uncredited)

Rex Moore as Elevator Boy (uncredited)

Frances Morris as Assistant Secretary (uncredited)

Bob Murphy as Automat Detective (uncredited)

Forbes Murray as Husband (uncredited)

Lee Phelps as Hotel Detective (uncredited)

John Picorri as Ernest - Hotel Waiter (uncredited)

Kate Price as Laundress (uncredited)

Jack Raymond as Bum (uncredited)

Jack Rice as Man in Ball's Outer Office (uncredited)

Hector V. Sarno as Armenian Rug Salesman (uncredited)

Francis Sayles as Martin - Houseman (uncredited)

Leonid Snegoff as Chef (uncredited)

Edwin Stanley as Second Partner (uncredited)

Hayden Stevenson as Chauffeur (uncredited)

Bernard Suss as Man in Automat (uncredited)

Laura Treadwell as Wife (uncredited)

William Wagner as J.B. Ball's Valet (uncredited)

Gloria Williams as Undetermined Secondary Role (uncredited)

Florence Wix as Woman in Hat Shop (uncredited)

Harry Worth as Hindu Man on Bus (uncredited)