David Thewlis:
I don't remember anything I've said. One word: riddickulus, and boggart.
Evanna Lynch:
All of Luna's lines are winners. "You're just as sane as I am."
Jason Isaacs:
My favourite line is one of Daniel's... "Let us hope Mr. Potter will always be around to save the day." Dan: "Don't worry, I will be." That was off the cuff.
Ralph Fiennes:
"I can touch you now."
Emma Watson:
"I'm going to bed before either of you come up with another idea to get us killed. Or worse, expelled."
Rupert Grint:
"She needs to sort out her priorities."
Julie Walters:
"Not my daughter, you bitch!" I didn't believe Mrs. Weasley would say it!
Robbie Coltrane:
"You're Harry Potter. You're the one who got away from... You Know Who."
Tom Felton:
"My father will hear about this!"
Matthew Lewis:
In movie 2, when he's hanging from the light: "Why is it always me?"
Bonnie Wright:
"Good luck" to Harry in movie 1 on the train platform.
James Phelps:
In the first movie: "Honestly, woman, you call yourself our mother?" Also "mischief managed."
Oliver Phelps:
Deathly hallows part 1, when Harry and Ginny were kissing, George creeps behind and says "Morning..."