“- Dewey Finn: The first thing you do when you start a band is talk about your influences. That's how you figure out what kind of band you want to be. So who do you like? Blondie?
- Marta: Christina Aguilera.
- Dewey Finn: Who? No. Come on. What? You, Shortstop.
- Leonard: Puff Daddy.
- Dewey Finn: Wrong. Billy?
- Billy: Liza Minnelli?”
Jack Black - Dewey Finn
Caitlin Hale - Marta
Cole Hawkins - Leonard
Brian Falduto - Billy

“I don't care what your secrets are. But I can't go ahead without more confidence in you than I've got now. You've got to convince me that you know what this is all about, that you aren't just fiddling around, hoping that it will all come out right in the end.”

Humphrey Bogart - Samuel Spade

“Drop by drop, Holmes. Drop by drop. Ah, in a way I'm almost sorry. You were a stimulating influence to me but it was obvious that I should win in the end.”

Lionel Atwill - Professor Moriarty

“The American people are conditioned by network TV, by local news, to believe that their communities are much more dangerous than they actually are.”
Arthur A. Busch - Himself

“- Lord Cadogan: Don't be impertinent, Liddell!
- Eric Liddell: The impertinence lies, sir, with those who seek to influence a man to deny his beliefs!”
Patrick Magee - Lord Cadogan
Ian Charleson - Eric Liddell