Patrick Troughton as The Doctor

Frazer Hines as Jamie McCrimmon

Wendy Padbury as Zoe Heriot

Kevin Stoney as Tobias Vaughn

Nicholas Courtney as Brigadier Lethbridge-Stewart

Edward Burnham as Professor Watkins

Sally Faulkner as Isobel Watkins

Peter Halliday as Packer/Cyberman Voice

Geoffrey Cheshire as Tracy

Ian Fairbairn as Gregory

Edward Dentith as Major General Rutlidge

Clifford Earl as Major Branwell

Robert Sidaway as Captain Turner

Norman Hartley as Sergeant Peters

James Thornhill as Sergeant Walters

John Levene as Corporal Benton

Stacy Davies as Private Perkins

Sheila Dunn as Phone Operator

Murray Evans as Lorry Driver

Walter Randall as Patrolman

Peter Thompson as Workman

Dominic Allan as Policeman

Pat Gorman as Cyberman

Ralph Carrigan as Cyberman

Charles Finch as Cyberman

John Spradbury as Cyberman

Derek Chafer as Cyberman

Terence Denville as Cyberman

Peter Thornton as Cyberman

Richard King as Cyberman