Julie Andrews as Mary Poppins

Dick Van Dyke as Bert / Mr. Dawes Sr.

David Tomlinson as Mr. Banks

Glynis Johns as Mrs. Banks

Hermione Baddeley as Ellen

Karen Dotrice as Jane Banks

Matthew Garber as Michael Banks

Elsa Lanchester as Katie Nanna

Arthur Treacher as Constable

Reginald Owen as Admiral Boom

Ed Wynn as Uncle Albert

Reta Shaw as Mrs. Brill

Arthur Malet as Mr. Dawes Jr.

Jane Darwell as Bird Woman

James Logan as Bank Doorman

Don Barclay as Mr. Binnacle

Alma Lawton as Mrs. Corry

Marjorie Eaton as Miss Persimmon

Marjorie Bennett as Miss Lark

Betty Lou Gerson as Old Crone (uncredited)

Kay E. Kuter as Man in Bank (uncredited)

Doris Lloyd as Depositor (uncredited)

Larri Thomas as Woman in Carriage (uncredited)

Marc Breaux as Cow (voice) (uncredited)

Queenie Leonard as Lady in the Bank (uncredited)

Daws Butler as Turtle / Penguin (voice) (uncredited)

Peter Ellenshaw as Penguin Waiter (voice) (uncredited)

Paul Frees as Barnyard Horse (voice) (uncredited)

Bill Lee as Ram (voice) (uncredited)

Sean McClory as Hound / Reporter #4 (voice) (uncredited)

Dal McKennon as Fox/Horse/Reporter #1/Guard/Penguin/Hound (voice) (uncredited)

Alan Napier as Huntsman / Reporter #3 / Hound (voice) (uncredited)

Marni Nixon as Geese (voice) (uncredited)

J. Pat O'Malley as (voice) (uncredited)

George Pelling as Hound / Reporter #5 (voice) (uncredited)

Thurl Ravenscroft as Hog / Andrew's Whimper (voice) (uncredited)

Richard M. Sherman as Penguin / Pearly (voice) (uncredited)

Robert B. Sherman as Pearly Banjo Player (voice) (uncredited)

Ginny Tyler as Lambs (voice) (uncredited)

Bert Stevens as Bank Customer (uncredited)

Frank Baker as Bearded Gentleman in Bank (uncredited)

Walter Bacon as Citizen (uncredited)

Robert Banas as Chimney Sweep (uncredited)

Roy Butler as Bank Safe Gentleman (uncredited)

Cyril Delevanti as Mr. Grubbs (uncredited)

George DeNormand as Pedestrian (uncredited)

Harvey Evans as Chimney Sweep Dancer (uncredited)

Clive Halliday as Mr. Mousley (uncredited)

Richard LaMarr as Gentleman in Bank (uncredited)

Lester Matthews as Mr. Tomes (uncredited)

Mathew McCue as Gentleman in Bank (uncredited)

David Hughes as Bank Clerk (uncredited)

Gene O'Donnell as Gentleman in Bank Safe (uncredited)

Hal Taggart as Bank Clerk (uncredited)

William H. O'Brien as Gentleman in Bank (uncredited)

Sam Harris as Citizen (uncredited)

Charles Fogel as Citizen (uncredited)