Other mistake: During the explosion from the tape recorder, there is a very short explosion shot recycled from a previous season (when Christopher locks Jack in a bunker and tries to kill him with a bomb placed in a clipboard). This old footage is also seen when that tape recorder explosion is shown on recaps of the event in season 6.
24 (2001)
1 mistake in Season 6 generally
Jack Bauer: I've killed two people since midnight. I haven't slept in over 24 hours. So maybe you should be a little more afraid of me than you are now.
More trivia for 24
Question: Did the actress who plays Nina know the entire time that she was supposed to be bad, or was this written into the show mid-season?
Chosen answer: Nobody knew, not even the writers, until at least halfway through the season when they were writing the end. They wanted to keep all options open.
Nick N.