Nicholas Courtney
Brigadier Lethbridge-Stewart, Bret Vyon, Tourist (uncredited), The Brigadier
John Leeson
Daleks (voice), K9 (voice), Dugeen
John Levene
Sgt. Benton, Sergeant Benton, RSM Benton, John Benton, Platoon Under Leader Benton
John Scott Martin
Zarbi, Nucleus, Robot, Mutt, Hughes, Dalek (operator), Dalek, Kriz, Charlie (uncredited), Mechanoid, Cell Guard (uncredited), Reading Guard (uncredited)
Lalla Ward
Romana II, Princess Astra, Romana
Nicola Bryant
Perpugilliam "Peri" Brown
Terry Walsh
Guard, Auton Policeman, Warehouse Looter, Skybase Guard (uncredited), UNIT Soldier (uncredited), Thal Guard / Thal Soldier (uncredited), UNIT Motorcyclist (uncredited), Militiaman (uncredited), Guard Captain, IMC Guard Rogers (uncredited), Kaled Scientist (uncredited), Castle Guard Barclay (uncredited), Castle Guard Barclay, Solos Guard (uncredited), Security Guard (uncredited), S.R.S. Meeting Security (uncredited), Stangmoor Man (uncredited), Executioner (uncredited), Zombie (uncredited), Guard (uncredited), Doran, Window Cleaner, Solider (uncredited), Wirrn Operator (uncredited), Crew Member (uncredited), Muto (uncredited), Man with Boat, Overlord Guard (uncredited), Thal Soldier (uncredited), Burning Exxilon (uncredited), Jack (uncredited), Mensch, Auton Policeman (uncredited), Zake, Doran (uncredited)
Richard Franklin
Captain Mike Yates, Mike Yates
Mark Strickson
Turlough, Vislor Turlough
Peter Purves
Morton Dill, Steven Taylor
Roy Skelton
King Rokon, Wester / Dalek Voices, Norton, Cyberman (voice), Chedaki, Daleks / K9 (voice), Daleks (voice), James, Dalek (voice)
Pat Gorman
Silurian, Primitive, Sea Devil, UNIT Corporal, Cyberman, Thal Soldier, Long, Auton Leader, Silurian Scientist, Primord, Primitive and Voice, Monk (uncredited), Colonist, Coven Member (uncredited), A Medic, Greek Soldier (uncredited), Soldier, Pilot
Peter Hawkins
Cybermen Voices (voice), Dalek (voice), Cybermen (voice), Daleks (voice)
David Graham
Charlie, Daleks (voice), Mechanoid (voice), Kerensky, Dalek (voice)
Michael Wisher
Ranjit (voice, uncredited), John Wakefield, Rex Farrel, Dalek (voice), Morelli, Magrik, Daleks (voice), Davros, Kalik, (voice, uncredited)
Cy Town
Technician (uncredited), Brother (uncredited), 2nd Brother (uncredited), Guard (uncredited), Haemovore (uncredited), Vogan (uncredited), Medical Orderly (uncredited), Passerby (uncredited), Dalek (operator), Extra (uncredited), Harold V's Brother (uncredited)
Colin Baker
Commander Maxil, The Doctor
Ian Marter
Harry Sullivan, John Andrews
Murphy Grumbar
Dalek Operator, Arcturus, Mechanoid, Dalek (operator)
