André Morell

~ as ~

Professor Bernard Quatermass

Cec Linder

~ as ~

Dr. Matthew Roney

John Stratton

~ as ~

Captain Potter

Christine Finn

~ as ~

Barbara Judd

Anthony Bushell

~ as ~

Colonel James Breen

Michael Ripper

~ as ~

Sergeant

Harold Goodwin

~ as ~

Corporal Gibson

Clifford Cox

~ as ~

First Private

Brian Gilmar

~ as ~

Second Private

Richard Dare

~ as ~

Private Secretary and 1 more