Seymour Krelborn

Seymour Krelborn is the central protagonist of The Little Shop of Horrors, especially the film adaptation - in most versions of the play he dies and is arguably more of an anti-hero, but in the movie he is much more of a heroic figure, and although he does fall for Audrey II's plans at first, he manages to defeat the evil plant in the climax of the film (which is drastically different from the ending of the play).