William Hartnell as The Doctor

Peter Purves as Steven Taylor

Adrienne Hill as Katarina

Jean Marsh as Sara Kingdom

Kevin Stoney as Mavic Chen

Nicholas Courtney as Bret Vyon

Peter Butterworth as The Monk

Brian Cant as Kert Gantry

Maurice Browning as Karlton

Julian Sherrier as Zephon

Roy Evans as Trantis

Bryan Mosley as Malpha/Prop Man

Terence Woodfield as Celation

Luanshya Greer as Lizan

Philip Anthony as Roald

Douglas Sheldon as Kirksen

Dallas Cavell as Bors

Geoffrey Cheshire as Garge

Roger Avon as Daxtar

Bill Meilen as Froyn

Robert Jewell as Dalek

Kevin Manser as Dalek

John Scott Martin as Dalek

Gerald Taylor as Dalek

David Graham as Dalek Voice

Peter Hawkins as Dalek Voice

Michael Guest as Interviewer

Clifford Earl as Policeman

Norman Mitchell as Policeman

Malcolm Rogers as Policeman

Kenneth Thornett as Policeman

Reg Pritchard as Man in Mackintosh

Sheila Dunn as Blossom Lefervre

Leonard Grahame as Darcy Tranton

Royston Tickner as Steinberger P. Green

Mark Ross as Igmar Knopf

Conrad Monk as Assistant Director

David James as Arab Shiek

Paula Topham as Vamp

Robert G. Jewell as Clown

Albert Barrington as Professor Webster

Steve Machin as Cameraman

Roger Brierley as Trevor

Bruce Wightman as Scott

Jeffrey Isaac as Khepren

Derek Ware as Tuthmos

Walter Randall as Hyksos

May Warden as Elderly Sarah Kingdom

John Harrington as Rhynmal