text: In the United Kingdom, Prowse was well known as the Green Cross Man, a superhero invented to promote a road safety campaign for children in 1975. As a result of his association with the campaign, which ran between 1971 and 1990, he received the MBE in 2000.
  He had a role as Frank Alexander's manservant, Julian, in the film A Clockwork Orange (1971), in which he was noticed by the future Star Wars director George Lucas. He played a circus strongman in Vampire Circus (1972), a Minotaur in the Doctor Who serial The Time Monster (also 1972), and an android named Coppin in The Tomorrow People in 1973. He appeared in an episode of Space: 1999, "The Beta Cloud" (1976), right before he was cast as Darth Vader. Around that time, he appeared as the Black Knight in the Terry Gilliam film Jabberwocky (1977) and was supposed to play Minoton in Sinbad and the Eye of the Tiger (1977), but the part went to Peter Mayhew instead, who later played Chewbacca in Star Wars.
  Prowse claimed that he nearly got the role of Jaws in James Bond (which ultimately went to Richard Kiel) and was offered the part of Conan the Barbarian before Arnold Schwarzenegger.