Oh and he didn't have a single question about anything that happened. I expected him to wake up in a fury looking for Micah or showing SOME sort of emotion about everything.
By the way, I am right behind you.

he shouldnt even be alive at all. his resurrection here was unrealistic. to come back after 19 years without a scratch on him? did every one forget the first where he was blown up and torn to pieces after we saw him come back possessed?
by that logic alone he should be dead. by my opinion he IS dead.

Actually there are two cases where he uses something to help hime walk. In Hannah's vision when she is in the hospital going back to look for Isaac, Isaac calls to her in a vision he is using a walker to walk down the hospital hallway. And, in the scene where he and Gabriel are walking through the cornfield talking about faith isaac si walking with a cane.
The sweet little children of Gatlin have chained the door!

Well he -was- possessed by He Who Walks Behind The Rows. I'm guessing he still has, at least some of, the powers from when he was possessed.

Isaac is'nt like a normal person he obviously recovered alot quicker than any normal person would.and remember the scene where he kill's the doctor the doctor had to use both his hands and all his strength to turn the water off then Isaac walks up and just barely touches it and it turns back on,i would say it's safe to say Isaac has some unique ability's.
"The world will look up and shout save us and i'll whisper no"Watchmen