Robert Powell

Character: Rook

Jennie Linden

Character: Sister Mary

George Maharis

Character: Mark Fields

Anthony Newlands

Character: Tony Barton

Derek Fowlds

Character: Dicky

Leigh Lawson

Character: Larry Turner

Windsor Davies

Character: Detective Moore

Norman Mitchell

Character: Security Man

Maggie Rennie

Character: Housekeeper

Joan Haythorne

Character: Mother Superior

Gerry Cowan

Character: T.V. Director

Jill Shakespeare

Character: Operator