Ashton Kutcher
That 70s Show star and philanthropist Ashton Kutcher has made an excellent example out of his career. He's not one for flaunting the luxuries of celeb life and dedicates a lot of his time to helping children in need. Still, Kathy Griffin had a bit of a problem with him when they were working on a project together. According to the comedian, she and Ashton were hosting an event, but Kutcher wasn't keen on listening to her. He jumped at the chance to snub Griffin, even interrupting an important conversation between her and P. Diddy!