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Peter Davison
The Doctor

Janet Fielding
Tegan Jovanka

Mark Strickson
Vislor Turlough

Tom Adams
Vorshak

Ian McCulloch
Nilson

Ingrid Pitt
Solow

Nigel Humphreys
Bulic

Tara Ward
Preston

Martin Neil
Maddox

Nitza Shaul
Karina

James Coombes
Paroli

Norman Comer
Icthar

Stuart Blake
Scibus

Vincent Brimble
Tarpok

Christopher Farries
Sauvix

Tai Ling
Seabase Crewmember