Guest Stars Felicity Kendal as Marcelle Robart Constantine Gregory as Jeweller Michael Bates as Delacroix Derek Newark as Maurice Keith Marsh as Leon Marius Goring as Henri Thibaud William Dexter as Inspector Banard Gillian Lind as Madame Robart Frank Maher as 1st Thug Inigo Jackson as Stephane Nina Huby as Arlette Terence Yorke as 2nd Thug
