Jon Pertwee

Character: The Doctor (archive footage)

Katy Manning

Character: Jo Grant (archive footage)

Roger Delgado

Character: The Master (archive footage)

Clive Morton

Character: Colonel George Trenchard (archive footage)

Edwin Richfield

Character: Captain John Hart (archive footage)

Royston Tickner

Character: Robbins (archive footage)

Donald Sumpter

Character: Commander Ridgeway (archive footage)

David Griffin

Character: Lt. Commander Mitchell (archive footaage)

June Murphy

Character: 3rd Officer Jane Blythe (archive footage)

John Caesar

Character: C.P.O Myers (archive footage)

Eric Mason

Character: C.P.O Smedley (archive footage)

Colin Bell

Character: C.P.O Summers (archive footage)

Alec Wallis

Character: LDG. Telegraphist Bowman (archive footage)

Christopher Wray

Character: LDG. Seaman Lovell (archive footage)

Norman Atkyns

Character: Rear Admiral (archive footage)

Martin Boddey

Character: P.P.S. Walker (archive footage)

Declan Mulholland

Character: Clark (archive footage)

Hugh Futcher

Character: Hickman (archive footage)

Terry Walsh

Character: Castle Guard Barclay (archive footage)

Stanley McGeagh

Character: Castle Guard Drew (archive footage)

Peter Forbes-Robertson

Character: Chief Sea Devil (archive footage)

Pat Gorman

Character: Sea Devil (archive footage)

Stuart Fell

Character: Stunt Sea Devil (archive footage)

Nicholas Briggs

Character: Sea Devil (voice)