Arthur Dent is played by -
Martin John Christopher Freeman (born 8 September 1971) is an English actor.
He is best known for his portrayals of Tim Canterbury in The Office, Dr. Watson in Sherlock,
and Bilbo Baggins in Peter Jackson's The Hobbit film trilogy.
Other notable roles including Love Actually,
The Hitchhiker's Guide to the Galaxy,
Nativity!, and the Three Flavours Cornetto trilogy, most prominently in The World's End.