The Hitchhiker's Guide to the Galaxy (novel) productions in the late 1970s. Davies himself appears as Prosser. This edition is out of print – Adams bought up many remainder copies and sold them, autographed, on his website. There have been three audiobook recordings of the novel. The first was an abridged edition (), recorded in the mid-1980s by Stephen Moore, best known for playing the voice of Marvin the Paranoid Android in the radio series, LP adaptations and in the TV series. In 1990, Adams himself recorded an unabridged edition for Dove Audiobooks (), later re-released by New Millennium Audio () in the United States and available
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