i am having the same problem on kadgar i waited for 30 min to log in and it wont let me see my toon list or anthing it sticks on retreiving list and wont load them!!!
Looks like Blackwing Lair is down too....went to zone into Maraudon and it hung up on the loading screen. I closed WoW, tried to log in again and I'm stuck on "Retrieving Character List"
Same thing here, went thru instance entrance, stuck on loading screen. Had to ctrl-alt-del out of wow. Restarted and stuck at retrieving character list.