“- Dr. Raymond Stantz: Well, no sense in worrying about it now.
- Dr. Peter Venkman: Why worry? Each one of us is carrying an unlicensed nuclear accelerator on his back.”

Dan Aykroyd - Dr. Raymond Stantz
Bill Murray - Dr. Peter Venkman

“- Rughead: This gang thing was okay when we had the edge, but now that there's that wraith out there that killed Oggie...
- Skank: A what out there, man?
- Rughead: A wraith, man! A ghost! A evil spirit - and it ain't cool!”
Clint Howard - Rughead
David Sherrill - Skank

“- Evelyn: Who invited them?
- Stephen Price: I don't know, it wasn't me and you say it wasn't you. Who then, Evelyn? Ghosts?”
Famke Janssen - Evelyn
Geoffrey Rush - Stephen Price

“- Vivian Thompson: You want to come over to my place, Claire? I have to warn you, though, it's haunted.
- Claire Cooper: Who's it haunted by?
- Vivian Thompson: You.”
Robert Downey Jr. - Vivian Thompson
Annette Bening - Claire Cooper

“- Quill: Look, I once killed the Phantom.
- The Great Kabai Sengh: Join the club. Many of us have killed him over the years. But he keeps coming back.”
James Remar - Quill
Cary-Hiroyuki Tagawa - The Great Kabai Sengh