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)