“- Christy: What if I have it? Mateo's disease.
- Johnny: That's not possible. God won't let that happen to you.
- Christy: You don't believe in God.”
Sarah Bolger - Christy
Paddy Considine - Johnny

“- Dr. Lilian Thurman: The search for God is absurd?
- Donnie Darko: It is if everyone dies alone.
- Dr. Lilian Thurman: Does that scare you?
- Donnie Darko: I don't want to be alone.”
Katharine Ross - Dr. Lilian Thurman
Jake Gyllenhaal - Donnie Darko

“Are you a God-fearing man? That is such a strange phrase. I've always thought of God as a teacher; a bringer of light, wisdom, and understanding. You see, I think what you really fear is me. Me and my kind.”

Sir Ian McKellen - Magneto

“I don't like your God. Your God scares me.”
Adam Sandler - Moses

- Dave Kujan: Do you believe in him, Verbal?
- Verbal: Keaton always said "I don't believe in God, but I'm afraid of him". Well I believe in God, and the only thing that scares me is Keyser Soze.

Chazz Palminteri - Dave Kujan
Kevin Spacey - Verbal