Patrick Troughton Dr. Who Actor Frazer Hines Jamie McCrimmon Actor Deborah Watling Victoria Waterfield Actor Jack Watling Professor Edward Travers Actor Victor Maddern Robson Actor Wendy Gifford Miss Garrett Actor Roy Spencer Harris Actor Peter Barkworth Clent Actor Graham Leaman Price Actor June Murphy Maggie Harris Actor Hubert Rees Chief Engineer Actor John Abineri Van Lutyens Actor Peter Sallis Penley Actor John Gill Oak Actor Bernard Bresslaw Varga Actor Tony Harwood Cyberman Actor Bill Burridge Quill Actor Roy Skelton Computer Voice Gordon Stothard Yeti Actor Reg Whitehead Cyberman Actor Peter Bryant Producer Hugh David Director Gerald Blake Director Tristan DeVere Cole Director Douglas Camfield Director Mervyn Haisman Writer Victor Pemberton Writer Luke Marcatili Producer, Director Barry Letts Director Morris Barry Director Henry Lincoln Writer David Whitaker Writer Derek Martinus Director Gary Russell Producer, Director Kit Pedler Writer Innes Lloyd Producer Brian Hayles Writer Gerry Davis Writer