Dolittle

Robert Downey Jr.

Dr. John Dolittle

Harry Collett

Tommy Stubbins

Michael Sheen

Dr. Blair Müdfly

Jim Broadbent

Lord Thomas Badgley

Antonio Banderas

King Rassouli

Rami Melik

Chee-Chee (voice)

Jessie Buckley

Queen Victoria

Emma Thompson

Poly (voice)

John Cena

Yoshi (voice)

Kumail Nanjiani

Plimpton (voice)

Craig Robinson

Kevin (voice)

Ralph Fiennes

Barry (voice)

Tom Holland

Jip (voice)

Octavia Spencer

Dab-Dab (voice)

Selena Gomez

Betsy (voice)

Marion Cotillard

Tutu (voice)

Kasia Smutniak

Lily Dolittle

Carmel Laniado

Lady Rose

Frances de la Tour

Dragon (voice)

Jason Mantzoukas

James the Dragonfly (voice)

Ralph Ineson

Arnall Stubbins

Joanna Page

Bethan Stubbins

Sonny Ashbourne Serkis

Arnall Stubbins Jr.

Oliver Chris

Sir Gareth