What are People that want to control other people?

If you mean what label to use, maybe they are simply "bossy" or "controlling." They are probably also insecure or they feel the world around them is falling apart. So they try to seek for order in the world around them to make up for not feeling fully in control of their own lives. There may also be a genetic predisposition. More extroverted, outspoken people with an immediate focus and strong ideas about how things must go would be more likely to have a controlling nature. In Meyer-Briggs personality terms, they would be mainly ES?J types.