I seem to remember a reference in one of Cox's "Khan" books to a character who could have been Jamie Summers.
[Stares at the ceiling and whistles innocently.]
As for shows that have referenced Trek as a TV show . . . off the top of my head, I can think of LOST, WAREHOUSE 13, FARSCAPE, and, er, BIG BANG THEORY.
And I'd be seriously surprised if neither CASTLE or BUFFY ever referenced Trek, as the pop-culture references fly fast and furious on those shows.