When Lauren brings up Jack's information on the screen (to figure out who went on her computer) it shows Jack's birthplace as London, Ontario, Canada. Victor Garber, who plays Jack, was born there.
When Jack is checking Lauren's E-mail account there are several e-mails from a Jason Delevan. Jason Delevan was a special technical adviser who was in charge of the on screen graphics and computer simulations on the show.
The painting behind Lauren as she makes the call to Sark from the restaurant (at around 09:30) is "Portrait of a young lady holding a cat" by Renaissance artist Francesco Bachiacca. The original is dated to 1525.
Djimon Hounsou was billed as Special Guest Star in this episode.
Sloane tells Sydney "I'm not the mole you're looking for" - Very similar to the famous Star Wars quote. Interestingly, J.J. Abrams goes on to join the Star Wars universe.