My favorite dude is the lonely janitor, forlornly sweeping the bridge of the Enterprise. You can see him from 2:33-2:36.
Also, I'm gonna predict that the way this dude keeps passively aggressively bringing up his love of the The Original Series vs. her love of The Next Generation is gonna lead to some pretty major shouting matches in the future.
Also, this gives me an excuse to repost my favorite thing that I've ever heard ever.
George Takei - "Rhymes with Okay"
YouTube via TrekMovie.