More than one artist has the name Tom Baker.

(1) Tom Baker is a British character actor, perhaps best known for the seven series he put in as the Doctor in long-running BBC sci-fi program "Doctor Who." Recently voted the fourth most recognizable voice in the UK (after Queen Elizabeth, Tony Blair, and Margaret Thatcher), Baker later became sought-after for commercial voice-overs (the outtakes from one, an ad for Symphony furniture, has become notorious for its profanity and general comedy), and currently provides the narration for the BBC sketch comedy program "Little Britain". Recently, Baker was also tapped by British Telecom to become the voice of text messages; Baker spent 11 days recording every sound in the English language, so an SMS sent to a landline phone could be "read" by the actor.
He also played "Puddleglum" in one of the Narnia series. (exact reference needed.)

(2) Tom Baker is a Seattle jazz guitarist notable for specializing in the fretless electric guitar. He has worked in a number of different groups, including the Tom Baker Quartet, Triptet and Ensemble Rhizome. Read more on Last.fm. User-contributed text is available under the Creative Commons By-SA License; additional terms may apply.