Cast from Doctor Who: Mawdryn Undead

Peter Davison

The Doctor

Sarah Sutton

Nyssa

Janet Fielding

Tegan Jovanka

Mark Strickson

Vislor Turlough

Nicholas Courtney

Brigadier Alistair Gordon Lethbridge-Stewart

Valentine Dyall

The Black Guardian

David Collings

Mawdryn

Angus MacKay

Headmaster

Stephen Garlick

Ibbotson

Roger Hammond

Dr. Runciman

Sheila Gill

Matron

Peter Walmsley

Mutant

Brian Darnley

Mutant