 | Emma Thompson als P.L. Travers |
 | Tom Hanks als Walt Disney |
 | Colin Farrell als Travers Robert Goff |
 | Paul Giamatti als Ralph |
 | Ruth Wilson als Margaret Goff |
 | Jason Schwartzman als Richard Sherman |
 | Bradley Whitford als Don DaGradi |
 | Annie Rose Buckley als Ginty |
 | B.J. Novak als Robert Sherman |
 | Kathy Baker als Tommie |
 | Lily Bigham als Biddy |
 | Melanie Paxson als Dolly |
 | Andy McPhee als Mr. Belhatchett |
 | Rachel Griffiths als Aunt Ellie |
 | Ronan Vibert als Diarmuid Russell |
 | Fuschia Sumner als Flight Attendant |
 | David Ross Paterson als Doctor |
 | Laura Waddell als Woman with Infant |
 | Barbara Keegan als Flight Attendant |
| Steven Cabral als Bank Clerk |
 | Jerry Hauck als Premier Emcee |
 | Michelle Arthur als Polly |
| Michael Swinehart als Porter |
 | Bob Rusch als Doorman |
 | Paul Tassone als Refreshment Tent Man |
 | Luke Baines als Waiter |
 | Demetrius Grosse als Bartender |
| Kim D'Armond als Katie Nanna |
 | Mia Serafino als Young Woman |
| Claire Bocking als Nanny Claire |
 | Dendrie Taylor als Lillian Disney |
| Kristopher Kyer als Dick Van Dyke (uncredited) |
| Victoria Summer als Julie Andrews (uncredited) |
 | Jaeden Bettencourt als Young Child-1906 (uncredited) |
| John Lee Hancock | Director |
| Ian Collie | Producer |
| Christine Langan | Executive Producer |
| Troy Lum | Executive Producer |
| Andrew Mason | Executive Producer |
| Alison Owen | Producer |
| John Schwartzman | Director of Photography |
| Kelly Marcel | Writer |
| Sue Smith | Writer |
| Philip Steuer | Producer |
| Paul Trijbits | Executive Producer |
| Thomas Newman | Original Music Composer |
| Mark Livolsi | Editor |
| Michael Corenblith | Production Design |
| Lauren E. Polizzi | Art Direction |
| Jessica Drake | Dialect Coach |
| Daniel Orlandi | Costume Design |
| Richard M. Sherman | Songs |
| Robert B. Sherman | Songs |
| Matthew Sullivan | Music Supervisor |
| Richard M. Sherman | Music Consultant |
| Ronna Kress | Casting Director |
| Philip Steuer | Unit Production Manager |
| K.C. Hodenfield | First Assistant Director |
| Jeff Okabayashi | Second Assistant Director |
| K.C. Hodenfield | Co-Producer |
| Susan Benjamin | Set Decoration |
| Kate Biscoe | Key Makeup Artist |
| Frances Mathias | Hair Designer |
| Frances Mathias | Hair Department Head |
| Catherine Childers | Key Hair Stylist |
| John Pritchett | Sound Mixer |
| Lauren Miyake | Visual Effects Producer |
| Jon Johnson | Supervising Sound Editor |
| Vanessa Lapato | Supervising Dialogue Editor |
| Mary Ann Kellogg | Choreographer |
| J.D. Schwalm | Special Effects Coordinator |
| Lorrie Campbell | Set Designer |
| Stephen Christensen | Set Designer |
| Sally Thornton | Set Designer |
| Bill Bernstein | Supervising Music Editor |
| Vincent Cirelli | Visual Effects Supervisor |
| Simon Mowbray | Visual Effects Supervisor |
| Steven Swanson | Visual Effects Producer |
| Justin Johnson | Digital Effects Supervisor |
| Valerie Lawson | Thanks |
| Peter Ronald Owen | In Memory Of |
| Daniel D. Harris | In Memory Of |
