Board Thread:Warhammer 40k General Discussion/@comment-5996697-20141013111548/@comment-25177957-20141014081346

Indeed, there can be more than one Brother Captain in one brotherhood if you go by them having the role of Justicars and leading Terminator squads.

As far as the Paladin squad goes, I'm not to knowledgeable on the Grey Knights in-game, however I'm pretty sure it's 4 regular Paladins, the Apothecary, the Standard bearer, the Champion and then the Grand Master. Not sure about the guy with the servo-skull, usually Grey Knights don't use them alone so are you sure it's not an Inqusitor. I could use some more info on that one.