“I must know everything. I must penetrate the heart of his secret! I must become Caligari!”
Werner Krauss - Dr. Caligari

“Mortimer, you know all about it and just forget about it. I do think that Aunt Martha and I have the right to our own little secrets.”

Josephine Hull - Abby Brewster

“I know how not knowing hurts.”

Keanu Reeves - Tom Ludlow

“A lot of strange things happen in this world. Things you don't know about in Grand Rapids. Things you don't want to know about. Doors that shouldn't be opened.”
Peter Boyle - Andy Mast

“- Billy 'Ford' Fordham: I know all your deepest secrets, Summers.
- Xander Harris: Care to make a small wager on that?”
Jason Behr - Billy 'Ford' Fordham
Nicholas Brendon - Xander Harris