This is the first time Stefan's encountered a case of mistaken identity beyond the doppelgänger issue with Katherine and Elena. He was aware of having been in Taxon before; Tara had explained that to him before she'd been sent home. He had no memories of being in Taxon before this time, but that had been him as himself, not this Lucas person he was presumed to be. It was fascinating, though. Of all the people across dimensions and worlds and times, he just happened to look exactly like someone this man new. Interesting.

"Stefan Salvatore," he offers in turn, shaking the man's hand. "First time I've been told I look like someone."