After solving most of the quests in Broken Hills, you can ask Marcus to join you. He can't wear armor, but he can utilize Big Guns and Energy Weapons, and can carry quite a bit. Not a bad NPC, overall.

Action Points: 9

Carry Weight: 275 lbs.

Hit Point Progression: 130, 145, 165, 175, 190, 205

Primary Skills: Big Guns, Energy Weapons, Unarmed