Cast:
Patrick Troughton, Frazer Hines, Deborah Watling, Nicholas Courtney, Jack Watling, Tina Packer, Jon Rollason, Ralph Watson, Jack Woolgar, Richardson Morgan, Rod Beacham, Stephen Whittaker, Derek Pollitt, Bernard G. High, Joseph O'Connell, John Levene, John Lord, Gordon Stothard, Colin Warman, Jeremy King, Roger Jacombs