I'm a new player so i can't give you the names of the bosses since i only did them once.
The first boss was 'the larder' or the big worm 'minion' from Azmodan who was already infiltrated in the keep. (he did some green cloudy stuff and spawned 2 yellow oozes every now and then)
The second boss was the one at the end of the bridge where Tyrael joined the battle. (he lifted me up and bit me in the face)
After the boss fight and the looting i must restart the game to get my cursor back. If it can be of any help, i'm using the Mac Client.
Have a nice day