Corrected entry: In series one, there is a scene where Jack is changing his shirt in his office, there are some very visible Japanese symbol style tattoos on his biceps. In series two, when we next see Jack's bare arms (when he is being tortured) the tattoos are no longer there.Kara
Corrected entry: In the 3am-4am episode (series 2), at about 3:10am the guys pick up Kate and head to her house. They arrive at the house at 3:44am, the same time as Jack leaves Yusaf. However, Jack arrives at Kate's house before the end of the episode, meaning he managed the drive in less than half the time of the other people.