Trivia: Lou Diamond Phillips made two appearances on the show, as Mark DeSalvo, the security chief where Victor Drazen is being held. Philips and star Kiefer Sutherland are known for having worked together in Young Guns and Young Guns 2.
Trivia: Each member of the cast of 24 is required to trim their hair every 5 days.
Trivia: Reiko Aylesworth auditioned for Nina Myers, but lost to Sarah Clarke. When Joel Surnow and Robert Cochran were casting the second season, they remembered her and cast her as Michelle Dessler.
Trivia: Jack's opening monologue changed subtly as the season moved on. It began, "Right now, terrorists are plotting to assassinate a presidential candidate, and my teenage daughter is missing." It then became, "...and my teenage daughter has been kidnapped," then "...my wife and daughter have been kidnapped," then, "...my wife and daughter are in danger," and finally, "...my wife and daughter have been targeted."
Trivia: Alberta Green, who makes her first appearance in this episode, was named for actress Alberta Watson, whom series creator Joel Surnow originally wanted to play the role. Ironically, Watson played Erin Driscoll, a character that is by-the-book, much like Green is, in Season 4.
Trivia: Co-creator Joel Surnow originally named Carlos Bernard's character "Tonio" Almeida, but Kiefer Sutherland was unable to say this name and ended up calling him "Tony" instead.
Trivia: While filming the first series of 24, the terrorist attacks of September 11th occurred. This is why the plane explosion is rarely mentioned as the series goes on.
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: The fabled 'bunny' who appears silhouetted in a scene in season 1 appears many times, according to this interview with Elisha Cuthbert: http://www.homunculus.com/articles/cuthbertelisha/cuthbertfhm0210.html.
Trivia: We get the impression from the first few episodes that Nina is trustworthy only to find out in the last 2 episodes that she was the main mole inside CTU. It's funny though that it was in front of our eyes the whole time, by accident or design: Every time that Jack says his famous starting monologue, when he comes to the part "and people I work with might be involved in both..." we see Nina looking at Jack.
Trivia: Eric Balfour began a series of guest appearances as Milo Pressman; the name was also used in the film Stand By Me, in which star Kiefer Sutherland appeared as a small-town bully.
Trivia: Both Sarah Clarke and Xander Berkeley have played turncoat government agents assisting terrorists attempting to assassinate the President. Clarke on 24, and Berkeley in the film Air Force One, when the President interferes with the terrorists' insidious plan. Ironically, the pair began dating during season one, and by season two, they were married.
Trivia: During production, Dennis Haysbert was shuttling back and forth between Los Angeles and the East coast, because he was filming "Far From Heaven" at the same time.
11:00 P.M.-12:00 Midnight - S1-E24
Trivia: To ensure that the season 1 finale wasn't given away by anyone, a number of different final episodes were filmed.
Trivia: Sarah Clarke was cast as Nina Myers the morning filming for the pilot was to begin. The costume department didn't have time to fit her, so she wore her own clothes during the season.
Day 2: 11:00 P.M.-12:00 Midnight - S2-E16
Trivia: At the end of the episode, Jack takes Kate out of CTU. When Tony tries to stop them, Jack throws him to the floor and he falls badly on his ankle. Tony spends the rest of the season on crutches. The reason for this is that Carlos Bernard, who plays Tony, broke his ankle playing basketball so the writers had to alter the script to take this into account.
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.