Robert Downey Jr.
Dr. John Dolittle
Acting
Harry Collett
Tommy Stubbins
Acting
Michael Sheen
Dr. Blair Müdfly
Acting
Jim Broadbent
Lord Thomas Badgley
Acting
Antonio Banderas
King Rassouli
Acting
Jessie Buckley
Queen Victoria
Acting
Emma Thompson
Poly (voice)
Acting
Rami Malek
Chee-Chee (voice)
Acting
John Cena
Yoshi (voice)
Acting
Kumail Nanjiani
Plimpton (voice)
Acting
Craig Robinson
Kevin (voice)
Acting
Ralph Fiennes
Barry (voice)
Acting
Tom Holland
Jip (voice)
Acting
Octavia Spencer
Dab-Dab (voice)
Acting
Selena Gomez
Betsy (voice)
Acting
Marion Cotillard
Tutu (voice)
Acting
Kasia Smutniak
Lily Dolittle
Acting
Carmel Laniado
Lady Rose
Acting
Frances de la Tour
Dragon (voice)
Acting
Jason Mantzoukas
James the Dragonfly (voice)
Acting
Ralph Ineson
Arnall Stubbins
Acting
Joanna Page
Bethan Stubbins
Acting
Sonny Ashbourne Serkis
Arnall Stubbins Jr.
Acting
Oliver Chris
Sir Gareth
Acting
Clive Francis
Archbishop
Acting
Paul Holowaty
Navy Man
Acting
Elliot Barnes-Worrell
Captain William Derrick
Acting
Mark Umbers
Lieutenant
Acting
David Sheinkopf
Don Carpenterino
Acting
Sid Sagar
Jeff the Prisoner
Acting
Martin Pemberton
Postman
Crew
Tim Treloar
Humphrey the Whale (voice)
Acting
Jim Carretta
Beard Mouse and Leona (voice)
Acting
Nick Fisher
Mini the Sugar Glider (voice)
Acting
Matt King
Clyde
Acting
Ranjani Brow
Mouse (voice)
Production
Kelly Stables
Mouse (voice)
Acting
Scott Menville
Army Ant (voice)
Acting
Gia Davis
Baby Animal (voice)
Acting
Henry Holcomb
Baby Animal (voice)
Acting
Kyrie McAlpin
Baby Animal (voice)
Acting
Isley Zamora
Baby Animal (voice)
Acting
Stewart Scudamore
Pirate
Acting
Samson Kayo
Pirate
Acting
John-Luke Roberts
Pirate / Animal Performer
Acting
Joseph Balderrama
Prisoner
Acting
Daniel Hoffmann-Gill
Prisoner
Acting
Jane Leaney
Animal Performer
Acting
Josh Jefferies
On Set Chee-Chee / Animal Performer
Crew
Shaun McKee
On Set Yoshi / Animal Performer
Acting
Richard Soames
Animal Performer
Acting
Will Arnett
Rabbit (voice) (uncredited)
Acting