Jon Pertwee as The Doctor

Nicholas Courtney as Brigadier Lethbridge-Stewart

Katy Manning as Jo Grant

Richard Franklin as Captain Yates

John Levene as Sergeant Benton

Wilfred Carter as Sir Reginald Styles

Peter Messaline as Daleks Voices (voice)

Jean McFarlane as Miss Paget

Anna Barry as Anat

Scott Fredericks as Boaz

Jimmy Winston as Shura

Tim Condren as Guerilla

Aubrey Woods as Controller

Valentine Palmer as Monia

Peter Hill as Manager

Andrew Carr as Senior Guard

George Raistrick as Guard

Alex Macintosh as Television Reporter

Gypsie Kemp as UNIT Radio Operator

Deborah Brayshaw as Technician

Rick Lester as Ogron

Maurice Bush as Ogron

David Joyce as Ogron

Frank Menzies as Ogron

Bruce Wells as Ogron

Geoffrey Todd as Ogron

Oliver Gilbert as Dalek Voices (voice)

John Scott Martin as Dalek

Murphy Grumbar as Dalek

Ricky Newby as Dalek

Michael Potter as U.N.I.T. Soldier

William Hartnell as The Doctor (1) (picture) (uncredited)

Patrick Troughton as The Doctor (2) (picture) (uncredited)

Nicholas Briggs as Dalek Voices (Special Edition)