Scott Krinsky plays Jefferson "Jeff" Barnes on NBC's Chuck.  Jeff is a member of the nerd herd at the Buy More and is a lot older and creepier than his co-workers.  Jeff is frequently seen hanging out with his best friend, Lester.  The two of them have a band they formed called Jeffster.

Jeff has made an office at the Buy More in one of the bathroom stalls.

Jeff Barnes Quotes

Alex [dressed as stripper]: I understand one of you has been a naughty, naughty boy.
Lester: Me, oh my God, pick me, I'm so bad, I've been bad, I've been bad, I'm a bad person, I'm a terrible person.
Jeff: I broke eight and a half commandments on the way to work this morning

Casey: Where's the fish?
Jeff: Fish? What fish?
Casey: Okay we can do it the easy way or the hard way. The easy way is I shove his foot up your ass.
Jeff: What's the hard way?
Casey: I use my foot!