Sir Arthur Conan Doyle(1967)

Linda Polan

Principessa Claudia Arrighi

Dennis Edwards

Dr. Julius Crick

David Morrell

Lovegrove

Edward Cast

A Professor

Kenneth Benda

Lord Mannering

Margaret Courtenay

Mrs. Esdaile

Keith Buckley

Tom Crabbe

Mike Pratt

Dr. O'Connell

David Markham

His Hon. Judge Jordan

Nicholas Smith

Mr. Bull

Norman Wooland

Melville Lang Esq. QC

Hamilton Dyce

Lumsden

Alan Howard

Theophilus St. James

Larry Martyn

Waiter

Paul Angelis

Travers

John Bryans

Mr. Armitage

Angela Pleasence

Maid

John Stratton

Insp. Lavender