On screen
Cast
7 credited performers
Patrick Troughton
The Doctor (voice)
Frazer Hines
Jamie McCrimmon (voice)
Deborah Watling
Victoria Waterfield (voice)
Nicholas Courtney
Colonel Lethbridge-Stewart (voice)
Jack Watling
Professor Travers (voice)
Artwork unavailable
Tina Packer
Anne Travers (voice)
Artwork unavailable
Derek Pollitt
Driver Evans (voice)