Doctor Who: The Seeds of Doom

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 Pat Gorman as Guard Alan Chuntz as Chauffeur

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