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
The Hitchhiker's Guide to the Galaxy scripts, and having Alan Bell involved are all offered as causes), and the second series was never made. Elements of "Doctor Who and the Krikkitmen" were instead used in the third novel, "Life, the Universe and Everything". The main cast was the same as the original radio series, except for David Dixon as Ford Prefect instead of McGivern, and Sandra Dickinson as Trillian instead of Sheridan. Interview with Sandra Dickinson on 1st June 2018, where she talks about The Hitchhiker's Guide to the Galaxy. Segments of several of the books were adapted as part of the BBC's "The Big Read"