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William Hartnell
Dr. Who

William Russell
Ian Chesterton

Jacqueline Hill
Barbara Wright

Carole Ann Ford
Susan Foreman

Derek Newark
Za

Alethea Charlton
Hur

Eileen Way
Old Mother

Jeremy Young
Kal

Howard Lang
Horg

Reg Cranfield
Policeman (uncredited)

Francesca Bertorelli
Schoolgirl (uncredited)

Carole Clarke
Schoolgirl (uncredited)

Heather Lyons
Schoolgirl (uncredited)

Mavis Ranson
Schoolgirl (uncredited)

Cedric Schoeman
Schoolboy (uncredited)

Brian Thomas
Schoolboy (uncredited)