19. Nymphadora Tonks
Tonks brings the party which is why Remus couldn't help but fall for her loveable punk-rocker personality, despite his best intentions to stay away from her. Her ability to change her hair and even her face makes her a whole new prospect to the other characters because she brings something completely different to the table, but it's no less impressively powerful. Not to mention, humour is a powerful thing and Tonks acts as a bright light during dark times.