Julie Andrews

Mary Poppins

Dick Van Dyke

Bert / Mr. Dawes Sr.

David Tomlinson

Mr. Banks

Glynis Johns

Mrs. Banks

Hermione Baddeley

Ellen

Karen Dotrice

Jane Banks

Matthew Garber

Michael Banks

Elsa Lanchester

Katie Nanna

Arthur Treacher

Constable

Reginald Owen

Admiral Boom

Ed Wynn

Uncle Albert

Reta Shaw

Mrs. Brill

Arthur Malet

Mr. Dawes Jr.

Jane Darwell

Bird Woman

Don Barclay

Mr. Binnacle

Marjorie Eaton

Miss Persimmon

Marjorie Bennett

Miss Lark

Betty Lou Gerson

Old Crone (uncredited)

Doris Lloyd

Depositor (uncredited)

Larri Thomas

Woman in Carriage (uncredited)

Queenie Leonard

Lady in the Bank (uncredited)

Daws Butler

Turtle / Penguin (voice) (uncredited)

Paul Frees

Barnyard Horse (voice) (uncredited)

Bill Lee

Ram (voice) (uncredited)

Sean McClory

Hound / Reporter #4 (voice) (uncredited)

Alan Napier

Huntsman / Reporter #3 / Hound (voice) (uncredited)

Marni Nixon

Geese (voice) (uncredited)

J. Pat O'Malley

(voice) (uncredited)

Thurl Ravenscroft

Hog / Andrew's Whimper (voice) (uncredited)

Richard M. Sherman

Penguin / Pearly (voice) (uncredited)

Robert B. Sherman

Pearly Banjo Player (voice) (uncredited)

Ginny Tyler

Lambs (voice) (uncredited)

Bert Stevens

Bank Customer (uncredited)

Cyril Delevanti

Mr. Grubbs (uncredited)

Harvey Evans

Chimney Sweep Dancer (uncredited)

Lester Matthews

Mr. Tomes (uncredited)

Gene O'Donnell

Gentleman in Bank Safe (uncredited)

Hal Taggart

Bank Clerk (uncredited)

William H. O'Brien

Gentleman in Bank (uncredited)