"I think it’s one of the best, it’s brilliant. You learn absolutely where this group are within four, five minutes: they’ve survived. And they’ve survived because of Rick…..They know he’s the leader, and they’ve trusted him. They become this tight-knit family that knows each other and reads each other’s signals. That’s why there’s no dialogue. You also find out the pressure they’re under. It’s a big factor, certainly in the first six episodes. The pressure they’re under is enormous."