Guest Stars Jean Marsh as Mrs. Vanrenen Michael Cashman as Asst. Purser Robbins Ronald Fraser as Mr. Horrocks Stephen Yardley as First Officer Clayton Norman Bird as Inspector Trent John Dawson as Jacobs Edward Dentith as Sir Edward Markham John Tordoff as Fox John Barcroft as Gaylord Paul Hardwick as Lord Altington Lindsay Campbell as Captain Handmay Annette Kerr as Mrs. Pallin John Sterland as Shipping Clerk Douglas Blackwell as Taylor Melanie Jane as Mrs. Clayton Bill Herbert as Third Officer
