Alice Sycamore

Jean Arthur

Grandpa Martin Vanderhof

Lionel Barrymore

Tony Kirby

James Stewart

Anthony P. Kirby

Edward Arnold

Kolenkhov

Mischa Auer

Essie Carmichael

Ann Miller

Penny Sycamore

Spring Byington

Paul Sycamore

Samuel S. Hinds

Mr. Poppins

Donald Meek

Mr. Ramsey

H.B. Warner

DePinna

Halliwell Hobbs

Ed Carmichael

Dub Taylor

Mrs. Anthony P. Kirby

Mary Forbes

Rheba

Lillian Yarbo

Donald(as Eddie Anderson)

Eddie 'Rochester' Anderson

Donald

Eddie Anderson

John Blakely

Clarence H. Wilson

Professor

Joseph Swickard

Maggie O'Neill

Ann Doran

Schmidt

Christian Rub

Mrs. Schmidt

Bodil Rosing

Wilbur G. Henderson, IRS Agent

Charles Lane

Dance Teacher

Dorothy Babbs

Judge

Harry Davenport

Judge

Henry Davenport

Bobby

Eugene Anderson Jr.

Kirby's Assistant (uncredited)

Byron Foulger

Henry - the Head Waiter (uncredited)

Irving Bacon

Porter in Bank

Jimmy Anderson

Kirby's Secretary (uncredited)

Ian Wolfe

Mike - the Detective (uncredited)

Ward Bond

Chief Detective (uncredited)

James Burke

Attorney to Kirby at Arraignment

Stanley Andrews

Reporter

William Arnold

Plainclothes Policeman (uncredited)

Eddy Chandler

Kirby's Office Aide

Johnny Arthur

Miss Jones - Blakely's Secretary (uncredited)

Anne Cornwall

Blakely's Inquisitive Office Worker (uncredited)

Nell Craig

Bill - Plainclothes Policeman (uncredited)

Edgar Dearing

Police Guard at Courtroom Entrance (uncredited)

Pat Flaherty

Lord Melville (uncredited)

Robert Greig

Hughes

Wallis Clark

Ice Man

Dutch Hendrian

Inmate Wearing Black Cap (uncredited)

Kit Guard

Matron

Blanche Payson

Kirby's Dining Guest (uncredited)

John Hamilton

Mary

Gladys Blake

Court Attendant (uncredited)

Edward Hearn

Taxi Driver

Joe Bordeaux

Kirby's Attorney (uncredited)

Russell Hicks

Dopey

John Tyrrell

Board Member (uncredited)

Edward Keane

Inmate (uncredited)

Pert Kelton

Neighbor

John Ince

Kirby's Attorney (uncredited)

Edwin Maxwell

Hammond

Chester Clute

Restaurant Patron (uncredited)

Frank McLure

Guard (uncredited)

Charles McMurphy

Expressman

Vernon Dent

Policeman (uncredited)

James Millican

Trustee

Sidney D'Albrook

Neighbor Helping with Move (uncredited)

Edward Peil Sr.

Barber

Nick Copeland

Mr. Leach

Walter Walker

Police Sergeant

James Farley

Man

Wedgewood Nowell

Neighbor (uncredited)

Frank Austin

Attorney

Boyd Irwin

Mrs. Drake

Laura Treadwell

Neighbor (uncredited)

Harry A. Bailey

Mac

Frank Shannon

Neighbor (uncredited)

Joseph E. Bernard

Strong arm man

Dick Curtis

Bailiff

Lee Phelps

Mrs. Leach

Doris Rankin

Jailer

James Flavin

Reporter

Bill Lally

Neighbor

Margaret Mann

Kirby's Attorney

Eddie Kane

Office Manager

Paul Irving

Russian General in Jail

Alex Woloshin

Doorman

Harry Hollingsworth

Lady Melville

Hilda Plowright

Bank Guard

Dick Rush

Drunk

C.L. Sherwood

Policeman

Bruce Mitchell

Executive

Edwin Stanley

Expressman

Pat West

Attorney

Pierre Watkin

Belle Johnstone

Diner

Sam Harris

George C. Pearce

Bank Clerk

Harry B. Stafford

Charles Brinley

Alice Keating

Ed Randolph

Georgia O'Dell

Dagmar Oakland

Fred Parker

Frances Raymond

Joe Bernard

Bud Wiser

Al Seymour

Tina Marshall

Victor Travers

Bert Starkey

Harry Semels

Jane Tallent

Ernie Shields

Rosemary Theby

Starrett Ford