Guest Stars Michael Logan as Hotel Manager Kevin Brennan as Michonnet John Barrard as Antoine Anthony Newlands as Theo Arthur Goullet as Handwriting expert Keith Marsh as Walter Neil McCarthy as Henri Trochu Stanley Van Beers as Insp. Castaing Nan Marriott-Watson as Madame Trochu Marie Ney as Madame Besson Jane Barrett as Yvette Veronica Wells as Rose Kenneth Adams as Booking Clerk