“We Marines have no qualms about killing Martians!”
James Karen - Gen. Climet Wilson

“- Gertie: Here he is.
- Mary: Here's who?
- Gertie: The man from the moon. But I think you've killed him already.”

Drew Barrymore - Gertie
Dee Wallace - Mary

“- Ripley: Just tell me one thing, Burke. You're going out there to destroy them, right? Not to study. Not to bring back. But to wipe them out.
- Burke: That's the plan. You have my word on it.
- Ripley: All right, I'm in.”

Sigourney Weaver - Ripley
Paul Reiser - Burke

“- Gertie: Here he is.
- Mary: Here's who?
- Gertie: The man from the moon. But I think you've killed him already.”

Drew Barrymore - Gertie
Dee Wallace - Mary

“- Dr. Stephen Arden: Have you found any other bodies?
- Xavier Fitch: No, we haven't not yet.
- Dan Smithson, Empath: You will. She's a predator. Her eyes are in front. Her eyes are in front so she can judge the distance to her prey.”

Alfred Molina - Dr. Stephen Arden
Ben Kingsley - Xavier Fitch
Forest Whitaker - Dan Smithson