Numb3rs/YMMV

Die for Our Ship: Amita.
Ensemble Darkhorse: Oswald Kittner (Jay Baruchel), a fantasy baseball player from "Hardball," was originally going to be another oneshot before fan reaction caused the creators to call him back for "Democracy."
Family-Unfriendly Aesop: In the "Hydra" episode, when our cast decides that when it comes to child custody, the self-proclaimed rights of a surrogate mother trump anyone else's, including the biological parents, and to hell with the contract she signed and what the court ruled.
- To be fair, they only made that decision after learning that the biological mother was dead, the biological father was nonexistent, the adoptive father and company were blatantly unsuitable while the surrogate mother and the child genuinely cared for each other.
Fan-Preferred Couple: David/Colby. It seems like half of the fandom ships these two.
- Lampshaded jokingly by both characters in episodes in the fifth and sixth season. Especially in the sixth season, specifically the episode about the dating bet with Agent Betancourt and in the series finale.
Ho Yay: In the episode Friendly Fire, Colby, David, and Nikki make a bet on who would show up with the best-looking date; Colby and David win by declaring that they're each other's dates (Nikki lost when her date walked out on her after learning that she was the cop who arrested his friend for public intoxication when he was actually suffering from food poisoning).
- At the end of the season, David is leaving for DC and everyone else refers to it as Colby and David's "breakup".
- When they're forced to spend time apart, Colby seems to go into withdrawal.
The Scrappy: Nikki. She has a four year degree from the streets of Compton, yo.
The Woobie: Charlie. There's a reason there is an entire subcommunity of fanfiction based solely around him and his Woobiness.