The Hitchhiker's Guide to the Galaxy a human-like alien writer for the eccentric, electronic travel guide "The Hitchhiker's Guide to the Galaxy", by hitchhiking onto a passing Vogon spacecraft. Following his rescue, Dent explores the galaxy with Prefect and encounters Trillian, another human who had been taken from Earth prior to its destruction by the President of the Galaxy, the two-headed Zaphod Beeblebrox, and the depressed Marvin, the Paranoid Android. Certain narrative details were changed between the various adaptations. The various versions follow the same basic plot but they are in many places mutually contradictory, as Adams rewrote the story substantially for each new adaptation. Throughout
Douglas Adams's Guide to The Hitchhiker's Guide to the Galaxy Douglas Adams's Guide to The Hitchhiker's Guide to the Galaxy Douglas Adams's Guide to The Hitch-Hiker's Guide to the Galaxy is a BBC Radio production sold as an audio book on two cassette tapes (later, two CDs). The programme was partially broadcast by BBC Radio 4 as a 40-minute feature titled "The Guide to 20 Years' Hitch-Hiking" on 5 March 1998, marking the 20th anniversary of the first radio programme in the "Hitchhiker's Guide to the Galaxy series". The first tape runs 55 minutes and is narrated by Peter Jones, who narrated the original radio series. It features comments by