This guy is a critic and here is what he tweeted about Alex in The Kill Team:
Here's his review:
Deeks is clearly an old-school war criminal – he proudly shows off a collection of severed fingers, taken in battle – but Skarsgård makes him new. His genius is in concentrating on a crucial, often overlooked fact – the charisma of sociopaths. Never shouting, rarely moving fast, Skarsgård gives Deeks a kind of calm cowboy charm, and you can see the young recruits – boys, really – start to fall in love a little. Deeks is like the Coolest Dad Ever, passing out porn and hooking them up with hash, and to win his respect, they will do anything – and eventually, kill anyone...
Briggman is a bit of a thankless part – movies generally aren’t built around heroes who don’t know what they want – but Wolff does what he can with it. And this is Skarsgård’s picture, and he dominates every scene he’s in because, like the cocky character he’s playing, he knows he doesn’t have to do anything except show up. He’s a bright, cold star. Less riveting are the scenes surrounding him...
At its core, The Kill Team has one great performance, and some important things to say – about the dangerous appeal of the strong, and the easy malleability of the young. It’s well worth watching, and thinking on. It’s just a shame that that great performance isn’t matched by all the others – and that what the film has to say is said in such a dutifully by-the-book way.
https://www.screendaily.com/reviews/the-kill-team-tribeca-review/5138863.article
Here's more of the Q&A: