I love Walton Goggins and I love Boyd Crowder, but I do have one gripe. I think his gratuitous murder of a dude whom he suspected of being a double agent in the pilot was arguably a misstep by the writers. Had they known Crowder would become a top-billed anti-hero (anti-villain?) character, I bet they would not have made him commit cold-blooded murder like that. It just takes away from his persona IMO, IE that of a deeply troubled, mentally disturbed man who is however good at heart.
But on the other hand, it's not like the writers are pretending like it didn't happen either. It was referenced in subsequent episodes during season 1. So I dunno. I'm conflicted about it to be honest. I keep changing my mind about it. I'm just hoping that murder comes back to haunt Boyd in the future, and maybe throws a wrench in his romance with Ava. His character doesn't deserve any kind of redemption until he answers for that murder, IMO. And I'm saying that as a huge fan of the character.
Sorry for the slightly rambling, stream-of-consciousness post.