Kavanaugh is a conniving, self-centered ass, but for some reason I've always kind of liked him as a foil. I was happy to see him back in Midway, especially since he looked really nice with his short hair. But then, I was kinda :}~ when he was Pride in the 7 Deadly Sins ep of Supernatural. Ben's a nice looking guy.

I've not read many people say they don't like Caldwell, but I've read a LOT of fic in which Caldwell is unfriendly to downright malevolent, busting John for DADT or trying to take him job, etc. Which I've always thought was kind of stupid because he's not acted that way in canon. Sure he's more by-the-book than John, but then pretty much everyone is. XD Caldwell/Weir was actually one of my favorite background pairings. As for Ellis, I don't like him even the slightest bit, but I'm not sure how much of that is the actual character and how much of it is actor carry-over, because I really despised Doc on Third Watch.