Cast:
Jon Pertwee, Caroline John, Nicholas Courtney, Ronald Allen, John Abineri, Robert Cawdron, Michael Wisher, Cheryl Molineaux, Ray Armstrong, Robert Robertson, Ric Felgate, Dallas Cavell, Bernard Martin, John Moreno, James Haswell, Derek Ware, William Dysart, Cyril Shaps, Gordon Sterne, Steve Peters, Neville Simons, Max Faulkner, John Lord, Tony Harwood, John Levene, James Clayton, Joanna Ross, Carl Conway, Roy Scammell, Peter Noel Cook, Peter Halliday, Geoffrey Beevers