Jason Flemyng

Professor Bernard Quatermass

Adrian Dunbar

Detective Lomax

Mark Gatiss

John Paterson

David Tennant

Doctor Gordon Briscoe

Indira Varma

Judith Carroon

Andrew Tiernan

Victor Carroon

Adrian Bower

James Fullalove

Isla Blair

Blaker

Andrew Scott

Vernon

Stephen Boxer

Colonel

Matthew Flynn

Charles Greene

Carsten Hayes

Ludwig Reichenheim

Lucy Evans

Janet

Gary Shelford

Understudy

Andy de la Tour

Chemist

John Kirk

Inspector