Early in my career, people wanted to pigeonhole me as the bad guy because I'm of Italian-American descent, which they often were when I started out. You have to fight against it. One of the things that helps is the ability to do comedy.
The constraints of melodrama can be a great blessing, because they demand that all the characters involved - as absurd and extreme as they may initially seem - must stay utterly rooted in their own reality, or the whole project collapses.
As soon as the actor steps into the role, you probably can cut 50% of the lines because there's a person there now. And what a person does with their eyes, with their mouth, with their hands, the way they walk into a room, you can probably cut half the scene.