The scene where Jack chases Hewitt on the roof was originally going to take place on a busy highway. This scene was detailed in an online exclusive on the official 24 site.
Nina Landey (Eve, the woman stabbed by Kingsley) played a different character (Amanda) in season 1's 2:00 P.M.-3:00 P.M.
The Season 2 DVD set contains a two-part documentary that details the making of the final two episodes of the season.
Vicellous Shannon was supposed to appear in the episode, but he was cut from the final print. The deleted scene is available to view on the Season 2 DVD set.