A movie that is a huge guilty pleasure of mine is the Roger Corman 90's Fantastic Four movie. But there is one character in it that is totally annoying and is really only there to create the catalyst for the Fantastic Four getting their powers in the first place. His story arc really adds nothing to the overall plot and he is virtually useless for the rest of the movie. I am of course talking about The Jeweler, Corman's non-cannon addition loosely based on the character The Mole from the comics.
One could argue that from the same movie Doctor Doom is annoying, but I personally love him. I mean he is far more comicbook Doomish in behavior even when he is hyperactively gesticulates all over the place (Perhaps a byproduct of having to wear a face concealing mask all the time.), more so than Julian Mc Mahon in the most recent Fantastic Four movies.
P.S. I do think Julian McMahon could have played a more aggressive, intimidating Doom if he had been given better direction and told to go balls to the wall with his darker side, but it's a case of Fox wanting to play it safe and not scare the kids so they could make more money.