Who are all the companions you can have on Fallout 3

I believe they are: (From Good, to Neutral, to Bad, to No Karma needed)

• Fawkes
• Star Paladin Cross
• Sergeant RL-3
• Butch DeLoria
• Clover
• Jericho
• Charon
• Dogmeat

Do realize you are only allowed one companion at a time along with Dogmeat.
Fawkes seems to be the people's choice of favorite.