Peter Davison

The Doctor

Matthew Waterhouse

Adric

Janet Fielding

Tegan

Sarah Sutton

Nyssa

James Warwick

Scott

Clare Clifford

Kyle

Beryl Reid

Briggs

David Banks

Cyber Leader

William Hartnell

The Doctor (1) (archive footage)

Patrick Troughton

The Doctor (2) (archive footage)

Tom Baker

The Doctor (4) (archive footage)