3. What Happened To Mandy? - 24
One of the few loose ends in Fox's hit show 24 is the fate of master assassin Mandy, the oft-naked lesbian who bombed a jet liner in season one, poisoned President Palmer in season two, and then briefly re-appeared in season four, before being captured, but making a deal that ensured her a President pardon. Presumably as a result, Mandy is still on the loose, and hasn't been seen in years. While FOX recently insisted that no former characters would be returning for next year's 12-hour mini-series 24: Live Another Day - except for Jack and Chloe, of course - it's not like they're just going to come out and namedrop Mia Kirshner as appearing, given that the whole fun of her character is the surprise, "gotcha!" appeal. While it's safe to assume that Mandy is back to her old ways already, it'd be nice to have it confirmed by way of a final showdown with Jack Bauer, one in which he (again) tears up the rule book and plugs her with a bullet.