Easy people! It's a new show - not a remake... I understand that some of you are really against this show being aired, mostly because you've seen the so called original "La Femme Nikita". Well... news flash! - the old show is not being replaced, see it as an alternate story - the background may be the same but the writers are taking a slightly different approach this time, so I wouldn't compare those two just yet. Like some of you who just watched the pilot and already discourage people from thinking on their own. Because that's just amateur...
As to the people who have a problem with the acting quality on the show... (referring to Maggie Q, Shane West and Xander Berkeley here) You say that these characters seem like zombies with no emotion. Haven't you even thought that this is how they are supposed to be? (I mean in the script, not the actual people :D ) Nikita was broken by people who also murdered her boyfriend and then she went off the grid. 5 years of thinking about revenge will break your soul even harder, so I'd say she's playing emotionally dead pretty well. Michael (West) has been working for the Division for quite some time and after all he's seen it's natural he'd start questioning his line of work, especially now that there is an actual enemy of the Division. And Percy is just a veteran of his line of work, so seeing his men fail him constantly against "1-girl army" drives him mad, but he can't exactly show frustration like that, can he..? That would be unprofessional, so he's boiling inside.
To clarify - I'm not saying the cast is particularly well chosen. I personally wouldn't pick Maggie Q for the role either. But it doesn't mean she's doing a bad job playing Nikita here. But that's just my opinion and not an attack on other people's opinions...