Justified is quite probably my favourite TV show ever. There were so many good characters in the show, you've already highlighted some, but Mags Bennett, Wyn Duffey, Dewey Crowe, Loretta McReady, and not to mention the wonderful Sam Elliott as Avery Markham. Just writing about it makes me want to watch it again, if ever I had a man crush, it would be Raylan Givens. Top, top show and very under rated.
I wasn't a fan of the Robert Quarles character either. I did like Mags Bennett and found Winona Hawkins easy on the eye.
Jere Burns played Wynn Duffy well, and Mikey was a good side-kick type.