The Hitchhiker's Guide to the Galaxy President; the depressed robot Marvin the Paranoid Android; and Trillian, formerly known as Tricia McMillan, a woman Arthur once met at a party in Islington and the only other human survivor of Earth's destruction thanks to Beeblebrox' intervention. The first radio series comes from a proposal called "The Ends of the Earth": six self-contained episodes, all ending with Earth's being destroyed in a different way. While writing the first episode, Adams realized that he needed someone on the planet who was an alien to provide some context, and that this alien needed a reason to be there. Adams finally settled
The Hitchhiker's Guide to the Galaxy (radio series) the other characters. He made this character an alien and, remembering an idea he supposedly had had while lying drunk in a field in Innsbruck, Austria in 1971, decided that this character would be a "roving reporter" for "The Hitchhiker's Guide to the Galaxy," a pan-galactic encyclopaedia and travel guide. Recollections by his friends at the time indicate that Adams first spoke of the idea of "hitchhiking around the galaxy" while on holiday in Greece in 1973. As the first episode's writing progressed, the "Guide" became the central focus of his story, and Adams decided to base the whole series