God I love Wrex. He's genuinely so insightful. Whenever I took him with me he's nearly ALWAYS the one who knew before it was obvious that we were heading into an ambush or that something wasn't quite right. When we met Vigil Wrex was the one who said as we headed down that he didn't think what was happening was Sarens doing. He says he knew Saren wasn't a good guy when he met him prior to the events of the game and he met him once for a few minutes. He speaks about only being good for fighting; but he was genuinely trying to do something about the genophage before he had to leave his planet AND he still DEEPLY cares about trying to fix it now even if he tells you it's a lost cause because krogans are too focused on other things. He claims his species is best at war and not things like science but he's just!! So clever and he clearly KNOWS on some level that a lot of what the Krogan experience is is based on their subjection/treatment in the galaxy. He enjoys jobs where his opponent is smart and good at what they do; and he is smart enough to be crafty and manipulate individuals such as when he got an employer to pay him to be a guard even AFTER he failed to kill the guy he was sent after. He is grumpy, but he cares about Shepard and he cares about stopping Saren. He's cynical and not sure that things can change for the better but he's also got this little nugget of hope in him that comes out so strongly at times. I love him. Best alien. Smart little guy. Best friend.