Jack's father Christian says to Sawyer at the bar "That's why the Sox will never win the series". The original air date for this episode was February 2005, four months after the Red Sox did in fact win the World Series.
Emilie de Ravin was initially a guest star that was billed as a regular in season 1. In this episode she officially became a part of the regular cast.
The woman Sawyer brings to his hotel in the flashback is played by actress Brittany Perrineau, wife of Harold Perrineau, who plays series regular Michael. Brittany also has small roles in the episodes "Numbers" and "Everybody Hates Hugo".
This episode was the first of the final 9 episodes, after the show was picked up for an entire season (after the initial 13 episode order).