The Doctor

Tom Baker

Acting

Romana (voice)

Lalla Ward

Acting

K9 (archive footage) (voice)

David Brierly

Acting

Skagra (voice)

Christopher Neame

Acting

Chris Parsons (voice)

Daniel Hill

Acting

Professor Chronotis (archive footage)

Denis Carey

Acting

Clare Keightley (voice)

Victoria Burgoyne

Acting

Wilkin (archive footage)

Gerald Campion

Acting

The Ship (voice)

Shirley Dixon

Acting

Dr. Caldera (archive footage)

Derek Pollitt

Acting

The Krargs (voice)

James Coombes

Acting

Police Constable

John Hallet

Acting

Man in Car (archive footage)

David Strong

Acting

Fisherman (archive footage)

James Muir

Acting

Krarg

Derek Suthern

Acting

Krarg

Barnaby Edwards

Acting

The Doctor (body double)

Tim Bentinck

Acting

Continuity Announcer (voice)

Toby Hadoke

Acting