Paul Schulze (Ryan Chappelle) is still credited, even though he only appears as a body in this episode.
SylviaImports.com, the website Saunders gives to Palmer, is owned by 24 director Rodney Charters. There is only simple text, which reads: Sylviaimports.com A Big Thank-you from the crew of 24. Thanks for watching, we love making it for you, and yes, we did get picked up for Season 4.
A scene was cut from the final print of this episode, featuring Jack alone in a helicopter, weeping over the death of Chappelle. It bares a striking similarity to the last scene in the first season finale. Presumably, the writers liked the idea of Jack breaking down alone and saved the idea for the final dramatic moment.