Cast:
Patrick Troughton, Deborah Watling, Frazer Hines, Shirley Cooklin, Roy Stewart, George Pastell, Aubrey Richards, Cyril Shaps, Bernard Holley, George Roubicek, Clive Merrison, Alan Johns, Ray Grover, Peter Hawkins, Michael Kilgarriff, Hans De Vries, Tony Harwood, John Hogan, Richard Kerley, Ronald Lee, Kenneth Seeger, Reg Whitehead, Charles Pemberton