Okay, now Owen's going into serious mode, which he hasn't been in since he fell out of the pod. His face goes tightly controlled, and with a flicker of movement, he's now standing partially between Patsy and the new guy.

It's entirely possible the alias is just that, an alias, but between the vibe off this guy, and Patsy's reaction, he's not writing off anything. His gaze is fixed on the alleged hell-spawn. He's not totally blocking them from being able to speak to one another, but he's not yielding any ground either.