How old were all of the actors in first Harry Potter movie?

Here are the ages of the main cast members in the first Harry Potter movie, "Harry Potter and the Sorcerer's Stone," released in 2001:

* Daniel Radcliffe (Harry Potter): 12 years old

* Rupert Grint (Ron Weasley): 12 years old

* Emma Watson (Hermione Granger): 11 years old

* Tom Felton (Draco Malfoy): 13 years old

* Alan Rickman (Severus Snape): 55 years old

* Maggie Smith (Minerva McGonagall): 61 years old

* Richard Harris (Albus Dumbledore): 71 years old

* Robbie Coltrane (Rubeus Hagrid): 45 years old

* Bonnie Wright (Ginny Weasley): 9 years old

Please note that these ages were at the time of the film's release.