Possible '24' Spoilers!
oh, c'mon! I'm absolutely psyched about this game but...
Sam went dark, because people (US Govt/Police/FBI) were looking for him
Jack Bauer went dark, because people (Chinese Govt) were looking for him.
Sam Fisher got a beard.
Jack Bauer grew a beard between Seasons 1-2 and 5-6
Sam now carries one of them "messenger bags". Jack Bauer carries a "messenger bag" in seasons 4-5
Sam Fisher kills a lot of terrorists.
Jack Bauer..... you got it. Kills a lot of terrorists