The Hitchhiker's Guide to the Galaxy (1981)
Don't Panic! The story of Arthur Dent, an average Englishman who life was spared by his friend, who turned out to be an alien, while the planet Earth is destroyed. His friend tells him about the Hitchhiker's Guide to the Galaxy, a guide with anything you ever needed, and wanted to know. They travel across the galaxy, meeting friendly, and not so friendly characters in order to find the great question (the answer being 42).
Trillian
Zaphod Beeblebrox
Arthur Dent
Ford Prefect
Marvin (voice)
Marvin
The Book
Vogon Guard