The Utterly Indispensible Second Banana
Scottie is the utility player; sometimes he's the crafty scrounger who can fix anything, sometimes he's the comic-relief drunk, and he's often at his most interesting when he's the designated arse-kicker. It comes from chivalric fantasy traditions: a truly noble hero, you see, can never stoop to certain actions, no matter how sensible, so he often has a lower-class sidekick who can do the thug's work when necessary. Kirk is far too noble to call up the Flemgonian Ambassador and say, "You have five minutes to give us back our hostages. If you don't, we will incinerate every city on your planet in alphabetical order." Scottie on the other hand can, and still provide Kirk with a scrim of deniability.
My current theory is that one of the reasons why the later ST series are not as memorable as the original is that they truly tried to achieve an ensemble cast, and thus rarely went into the library of recognizable sidekicks (except for the loathsome boy genius Wesley Crusher, but enough about him). It isn't until we get Archer, Tucker and Reid on Enterprise that we get back to the formula of heroic leading man w/ squires, and as for that...
No, I am not going to start ranting and swearing about the abyssmal last episode of Enterprise. Not here. Not how.
Instead, let's turn it over to discussion. Who is your favorite ST sidekick character, and why?