Daimon Hellstrom, Nick knew the name; this guy had been on some list somewhere of occultists in New York. S.H.I.E.L.D. had a lot of lists like that, people with speciliazed knowledge they could potentially call on in extreme circumstances when their own resources couldn't cut it. That S.H.I.E.L.D. was aware of him went a little way to assuage Nick's suspicion, but a little skepticism was healthy. He wasn't prepared to simply invite the stranger out to the Raft yet, give him access to Wanda. Jessica may have believed in him, but Fury would need convincing.
Turning to his computer terminal, Nick typed in a command and while it searched for information he returned his gaze to the pair standing before his desk. "So you know Wanda," he remarked and then asked Jess, "And you trust him?"