8. Morgan And Alex (Chuck)
Another geek with a girl out of his league, Morgan and Alex had an unbelievable relationship on Chuck. There's a pretty good chance that the show was just trying to throw the audience off of the stench of the increasingly serious coupling of the titular Chuck and the sexy secret agent Sarah (which grew on the audience over time as did Zachary Levi's charm), but that doesn't change the fact that this particular couple should not have existed. Alex was Casey's daughter, and the idea that the extremely uptight Casey would allow his loser coworker to date his only child was played with but never properly addressed (i.e. him actually maiming the witless Morgan). Sure, Morgan got in on the spy action in later seasons and occasionally proved his good intentions and worth, but the idea that he would be appealing enough to snag Alex was far-fetched to say the least.