55 years old (Born on October 08, 1964)
British, Actor; He is famous from Harry Potter and the Sorcerer's Stone.His birth name was Ian Davies but he adopted the surname "Hart" from his Everyman Theatre School friend Barbara Hart. Not only did he play Professor Quirrell, but he also provided the facial structure for the CG head of Lord Voldemort at the end of Harry Potter and the Sorcerer's Stone (2001). The role was later re-cast with Ralph Fiennes, beginning with Harry Potter and the Goblet of Fire (2005). Resides in Crouch End, London, England.  Has two daughters: Daisy, born in 1996 and Holly, born in 2001. Wife is a teacher, they have one daughter.
Ian Hart's Best Moments
Fun Facts About Ian Hart
Has played both Arthur Conan Doyle (in Finding Neverland (2004)) and one of his most famous characters from the Sherlock Holmes canon, Dr. Watson (The Hound of the Baskervilles (2002) (TV) and Sherlock Holmes and the Case of the Silk Stocking (2004) (TV)).
Has twice played a lackey of Ralph Fiennes. In The End of the Affair (1999), he plays a private detective hired by Fiennes's character to spy on Julianne Moore. In Harry Potter and the Sorcerer's Stone (2001), he allows his body to be used as a host for the spirit of Lord Voldemort - who is played in the flesh by Fiennes, beginning with Harry Potter and the Goblet of Fire (2005).
Twice portrayed John Lennon on film, in The Hours and Times (1991) and Backbeat (1994).