Does being a ‘hero’ mean you are a perfect person?

This question is for ‘hero’ in all forms: realistic, fiction, superhero, comic book, anime, etc. Let’s say a person is flawed, or is very arrogant, or has a superiority complex, etc., but also does heroic things—like being a firefighter, doctor, wizard, superhero, whatever. Do you think that person is still a hero despite having negative personality traits?