We can probably all agree that Cook's behaviour in the third and fourth seasons of Skins is extremely self-destructive, at best. Best mates with JJ and Freddie, Cook is the life of the party, but there's also no doubt that his troubled upbringing has left some serious scars. Cook was played by Jack O'Connell, who's still a full-time actor, having bagged roles in Unbroken and Starred Up. He also starred alongside George Clooney and Julia Roberts in the 2016 movie Money Monster, so, yeah, he's doing pretty well for himself.