Question: I think Nathan is played by Paul Guilfoyle, however, after checking and double-checking I can't see Nathan on the end credits. Am I right, and does anybody know why he wasn't credited?
Question: How did Danny not get charged for taking hostages? He is even reinstated back into the police force.
Answer: Given the department-wide conspiracy he uncovered it's clear the authorities were unwilling to prosecute him.
Danny was so good with the hostages; I'm sure they wouldn't testify against him either. It would be too risky for the D.A. to try and prosecute.
Question: Why did Kevin Spacey shoot Samuel L Jackson? I know he wanted to fake his death, but he could've actually died. He could've just shot him with a blank. Also, did Samuel L Jackson know he was about to get shot?
Chosen answer: It's unlikely in the extreme that Kevin Spacey would have a blank round on him. He had to actually shoot him so he'd bleed and appear dead. Remember, both characters were improvising.
Question: The ending apparently had to be reshot, because the original ending leaked out. What was this original ending?
Answer: The original ending features a huge shoot-em-up, involving more than 150 cops, but it was changed to a shoot-em-up on a much smaller scale that involves only Kevin Spacey, Samuel L. Jackson and Ron Rifkin.
Question: When Frost attempts suicide, Beck shoots him in the shoulder to disarm him... why? He could have easily killed Frost (or Danny and Chris, who were several feet behind Frost).
Chosen answer: Beck wants Frost to stand trial and suffer for his crimes. Realistically a trained officer would never do this not only for the reasons stated but also because police officers are trained to shoot to kill, not to wound.
Answer: According to IMDB.com, Paul Guilfoyle did play Nathan, though he wasn't credited for the role.
Xofer
Any specific reason as to why Paul Guilfoyle was not credited in the Negotiator movie?
There are many reasons that an actor won't be credited for his/her role in a film. They may not have been happy with their performance, or maybe thought the finished film wasn't all that good, or they thought their part in the film might have overshadowed more deserving performers - the list goes on and on. Jack Nicholson was not credited for his role in "Broadcast News", even though he had a prominent and important role, and nobody seems to know why. Go figure.