Trivia: In the season seven premiere, Carlos Bernard is credited as Tony Almeida, even though his return was meant to be a surprise. This was because Tony's return was leaked in a press release almost a year before the episode aired.
Trivia: Co-creators Joel Surnow and Robert Cochran have admitted to naming characters after tennis and chess players respectively, while producer Michael Loceff names characters after people from Foothill College, where he teaches.
Trivia: Over the course of each season, Sterling Rush (head of the props department) takes an average of 10 to 12 thousand photos of sets, props and characters, in order to ensure continuity between scenes and episodes.
Trivia: The main character of the show was originally going to be named Jack Barrett. The creators of the show decided they didn't like the name, and changed it to "Bauer" after Elaine Bauer, an executive at Imagine Entertainment.