Joey: Well, why do you call him Gandalf?
Ross: Gandalf the wizard. Hello?! Didn't you read Lord of the Rings in high school?
Joey: No, I had sex in high school.
Ross and Chandler's friend Mike "Gandalf" Ganderson, whom they refer to as "the party wizard", is based on a character from The Lord Of The Rings, Gandalf the wizard, who, among other things, was known to be a hit at parties with his fireworks. He was played by Ian McKellen in the 2001 Academy Award-winning film adaptation Lord of the Rings.