Geeking Out: River Tam! (Firefly)
Chuck-Verse: "Greta 4.0"
Appearance: "Chuck Vs. The Fear of Death"
Summer freakin' Glau! Geek queen of Firefly, Serenity, Terminator: The Sarah Connor Chronicles and The Cape...if you're into that sort of thing. Not to mention, former Firefly co-star Adam Baldwin in the lead! Let the geek references commence!
Well, there were one or two about "her former crew," anyway, but Summer Glau's Greta stayed to the B-story as Jeff and Lester fought to uncover the mysterious nature of this icy undercover operative, to her great annoyance.
