James Fox

Sir Anthony Blunt

Prunella Scales

H.M.Q.

Geoffrey Palmer

Donleavy

David Calder

Chubb

Ann Beach

Mrs. Chubb

John Cater

Restorer (Robertson)

Edward de Souza

Collins

Jason Flemyng

Colin

Gregory Floy

Radiologist

Barbara Hicks

Lady at National Gallery

Anne Jameson

Blunt's Secretary

Mark Payton

Phillips

Julia St. John

Receptionist

Richard Bebb

Consultant