The Curse of Peladon was the second story of the ninth season of Doctor Who. It introduced the planet of Peladon and the Galactic Federation, both of which would feature in additional stories on television and in other media, as would Alpha Centauri, one of its delegates. The serial featured David Troughton, the son of Patrick Troughton, formerly the Second Doctor, in his second appearance guest starring on the programme. He would reappear three decades later in TV: Midnight playing a different, older character, Professor Hobbes.