Benedict Cumberbatch

Henry Sugar / Max Engelman / Harry

Dev Patel

Dr. Chatterjee / John Winston / Woods

Ben Kingsley

Imdad Khan / The Dealer / Dr. Ganderbai

Richard Ayoade

Dr. Marshall / The Great Yogi / Various

Ralph Fiennes

Roald Dahl / The Policeman / Rat Man

David Gant

Casino Croupier

Jarvis Cocker

Casino Receptionist and More

Rupert Friend

Narrator / Claud

Till Sennhenn

Stagehand

Benoît Herlin

Stagehand

Asa Jennings

Peter Watson

Octavio Tapia

Stagehand

Truman Hanks

Stagehand

Eliel Ford

Stagehand