Crossword puzzle clue "nate's and chuck's girlfriend at different times of course"

Nate's and Chuck's girlfriend (at different times, of course)

Chuck's girlfriend on TV's "Chuck"

Suggestion uttered by Nate Dogg at the end of Dr. Dre's "The Next Episode" (The views and opinions expressed in this answer are not necessarily shared by The Cross Nerd Inc.)

Chuck's sister, on 'Chuck'

"... woodchuck chuck, ___ woodchuck could chuck wood?"

Chuck's co-worker at the Buy More, on "Chuck"

Agcy. Chuck works for on "Chuck"

Nate's love interest on "Six Feet Under"