Elenco

• 

  Brian Donlevy

  Prof. Bernard Quatermass

• 

  John Longden

  Chief Inspector Lomax

• 

  William Franklyn

  Dr. Tom Brand

• 

  Bryan Forbes

  Marsh

• 

  Charles Lloyd Pack

  Work Camp Manager Dawson

• T

  Tom Chatto

  Vincent Broadhead, M.P.

• 

  John Van Eyssen

  The Plant Tour Guide

• 

  Sidney James

  Jimmy Hall

• 

  Percy Herbert

  Paddy Gorman

• 

  Michael Ripper

  Ernie the Bartender