The Doctor and Jo arrive on the medieval planet Peladon, where the Doctor is mistaken for the Earth Delegate of the Galactic Federation and Jo is mistaken for a princess.
Quest roles:
Murphy Grumbar(Dalek Operator), Sonny Caldinez(Ssorg), David Troughton(Peladon), Henry Gilbert(Torbis), Geoffrey Toone(Hepesh), Stuart Fell(Roga), Alan Bennion(Izlyr), Terry Bale(Voice of Arcturus (voice)), Nick Hobbs(Aggedor), Ysanne Churchman(Alpha Centauri (voice)), Gordon Stothard(Grun)