In which film is Albus Dumbledore a character?

In which film is Hermione Granger a character? Who played Ron Weasley in 'Harry Potter and the Sorcerer's Stone'? In which film is Ron Weasley a character? Who played Albus Dumbledore in 'Harry Potter and the Sorcerer's Stone'? Who played Severus Snape in 'Harry Potter and the Sorcerer's Stone'? In which film is Severus Snape a character? Who played Rubeus Hagrid in 'Harry Potter and the Sorcerer's Stone'? In which film is Rubeus Hagrid a character?