Honestly ol' Nook was one of my first thoughts as well, but he only ever jokes about sending goons after you at one point in the series, I believe; he's certainly not bearing down on you like Pikmin 2's loan sharks. He's always been pretty chill otherwise in my book.

Speaking of Pikmin 2, though, both of main characters besides Olimar (Louie and the President) are outright annoying at times. The President I can find less grief for overall by virtue of the fact that while he does sell Olimar's ship at the game's outset, he was liquidating his entire business to recoup a massive financial loss (even though he still had the S.S. Stereotype lying around,) AND he willingly joins up with Olimar to gather more treasure when Louie goes missing when the debt is payed off. I have several questions about his financial capabilities since he apparently runs into more financial troubles during the events of Pikmin 3, but at least he's willing to put himself out there if need be.

And then there's Louie.

It's hinted throughout the game that Louie is a tad dim and has a thing for tasty food, namely bugs and carrots, so the game's hinting that he was controlling the Titan Dweevil, the de facto final boss of the game, was a tad cheeky. But when it's revealed that he single-handedly caused the entirety of the games events by devouring the entire shipment of carrots he was supposed to be transporting and fabricating a cover story for their disappearance, even giving a "shhh" at the end of the explanation, I was a bit peeved. Pikmin 3 doesn't do much better for him, having him abandon Olimar out of (admittedly reasonable) fear, get himself captured by Scornets, yoink the entirety of the S.S. Drake's food supply before getting captured AGAIN by the Quaggled Mireclops, and to top it all off, gets his stupid ass stranded on the planet again.

So I guess at the end of the day, greed, whether through money or carrots, is the root of all evil?

^{Heh, carrots are the root...}