Reginald Tate

~ as ~

Professor Bernard Quatermass

Isabel Dean

~ as ~

Judith Carroon

Hugh Kelly

~ as ~

John Paterson

Duncan Lamont

~ as ~

Victor Carroon

Paul Whitsun-Jones

~ as ~

James Fullalove

John Glen

~ as ~

Dr Gordon Briscoe

Ian Colin

~ as ~

DI Lomax

Frank Hawkins

~ as ~

DS Best

Christopher Rhodes

~ as ~

Dr Ludwig Reichenheim

Peter Bathurst

~ as ~

Charles Greene