| Julie Andrews (Mary Poppins) | Dick Van Dyke (Bert/Mr. Dawes, Sr.) | David Tomlinson (Mr. George W. Banks) |
| Glynis Johns (Mrs. Winifred Banks) | Hermione Baddeley (Ellen) | Reta Shaw (Mrs. Brill) |
| Karen Dotrice (Jane Banks) | Matthew Garber (Michael Banks) | Elsa Lanchester (Katie Nanna) |
| Arthur Treacher (Constable Jones) | Reginald Owen (Admiral Boom) | Ed Wynn (Uncle Albert) |
| Jane Darwell (Bird woman) | Arthur Malet (Mr. Dawes, Jr.) | Marni Nixon (Three Animated Geese (singing voix)) |
| Robert Banas (Chimney Sweep (non-crédité)) | Don Barclay (Mr. Binnacle (admiral's servant)) | Marjorie Bennett (Miss Lark (old woman in park) (uncredite) |
| Marc Breaux (Cow (voix) (non-crédité)) | Daws Butler (Turtle/Penguin (voix) (non-crédité)) | Cyril Delevanti (Mr. Grubbs (non-crédité)) |
| Marjorie Eaton (Miss Persimmon (old woman in park) (uncr) | Betty Lou Gerson (Old Crone) | Clive Halliday (Mr. Mousley (non-crédité)) |
| Sam Harris (Citizen (non-crédité)) | Alma Lawton (Mrs. Corry (old woman in park) (uncredit) | Doris Lloyd (Depositor (non-crédité)) |
| James Logan (Citizen (non-crédité)) | James Macdonald (Penguins, Guard, News Reporter, Photogra) | Lester Matthews (Mr. Tomes (non-crédité)) |
