That's the first thing that I realized while reading this... these aren't necessarily people that you don't want in your startup, but rather characteristics you and others on your team want to suppress within. I think everyone can agree that most people have a little bit of all these Mr so-and-so's in them.

I see Mr. Dreamer in myself for sure. I have a billion ideas for what I'm going to do Some Day (TM) when I've got money to burn. However, I use it as a long-term goal to keep me going when the going gets tough, rather than letting it get in the way. Usually.

sometimes I can be mr. prefectionist