André Morell

Professor Bernard Quatermass

Cec Linder

Dr. Matthew Roney

John Stratton

Captain Potter

Christine Finn

Barbara Judd

Anthony Bushell

Colonel James Breen

Michael Ripper

Sergeant

Harold Goodwin

Corporal Gibson

Clifford Cox

First Private

Brian Gilmar

Second Private

Richard Dare

Private Secretary

Brian Worth

James Fullalove

Richard Shaw

Sladden

Robert Perceval

Minister

Ian Ainsley

Police Inspector

John Walker

Private West

Nigel Kneale