Doctor Who: The Seeds of Doom

Alan Chuntz as Chauffeur Pat Gorman as Guard Elisabeth Sladen as Sarah Jane Smith Mark Jones as Arnold Keeler / Krynoid (voice) Tony Beckley as Harrison Chase Tom Baker as The Doctor John Challis as Scorby

Dick Mills Special Sound Effects Roger Murray-Leach Production Design Terry Walsh Fight Choreographer Philip Hinchcliffe Producer Geoffrey Burgon Original Music Composer Graeme Harper Production Assistant Robert Holmes Script Editor Douglas Camfield Director Robert Banks Stewart Writer George Gallaccio Production Manager Delia Derbyshire Theme Song Performance