Guest Stars Keith Dalton as Newsboy Jerold Wells as Phelps George Moon as Cabbie Stella Courtney as Shop Assistant Charles Gray as Eugene Valmont Derek Tansley as Colonel Roger Bizley as Gauntlet Dennis Clinton as Summertrees David Battley as Podgers Barry Linehan as Inspector Hale Ronnie Masterson as Housekeeper George Howe as Lord Semptam Suzanne Neve as Miss Mackail Michael Goldie as Fred Thick Wilson as Joe Stuart Sherwin as Carew Anthony Allen as Rogers