“- Charles Xavier: The world's already begun rebuilding its arsenals.
- Erik Lensherr: It's human nature, Charles.
- Charles Xavier: I still have hope.”
James McAvoy - Professor Charles Xavier
Michael Fassbender - Erik Lensherr

“- Dr. Ouelet: Please, don't do that. You're reducing a complex human to a machine.
- Cutter: I don't think of her as a machine. She's a weapon.”

Juliette Binoche - Dr. Ouelet
Peter Ferdinando - Cutter

“- Eddie Jessup: I can't live with it Emily, the pain is unbearable.
- Emily Jessup: We all live with it. That unbearable terror is what makes us such singular creatures. We hide from it, we succumb to it, mostly we defy it! We build fragile little structures to keep it out. We love, we raise families, we work, we make friends. We writepoems...”

William Hurt - Eddie Jessup
Blair Brown - Emily Jessup

“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

“- Bob Diamond: Being from Earth, as you are, and using as little of your brain as you do, your life has pretty much been devoted to dealing with fear.
- Daniel Miller: It has?
- Bob Diamond: Well everybody on Earth deals with fear - that's what little brains do.”
Rip Torn - Bob Diamond
Albert Brooks - Daniel Miller