Premise: Robbie Coltrane, OBE (born Anthony Robert McMillan; 30 March 1950) is a Scottish actor and author. He is known for his roles as Rubeus Hagrid in the "Harry Potter" films, as Valentin Dmitrovich Zukovsky in the James Bond films "GoldenEye" and "The World Is Not Enough," and as Dr. Eddie "Fitz" Fitzgerald in the British TV series "Cracker" during the 1990s.
Hypothesis: Robbie Coltrane is known for playing serious characters.