Pepper: Pepper spent way more hours than she should delegating tasks and helping people connect and reporting damages and rescues as best she can. Obviously the scale of damage and stuff made that pretty impossible in the later days. She stayed long hours in the Industries, mostly locked down in a little bunker with computers. She's probably crabby and exhausted. The only time she took a break short of sleeping was when James got hurt and she went to see him.
Colin Colin has been having panic attacks since this whole thing started. He basically went to where ever all the other people went to be safe, and went borderline catatonic. He mostly just kept to himself, cuddled his dog, and had pretty awful flashbacks to the war and got super afraid that he was going to die. Because thats what happened last time he was expected to fight.
Mary Mary doesn't enjoy being a superhero, but she did do so to make sure that everyone had supplies, and had Freddy constantly check in with her even though she knows they are basically invincible. She mostly did her best to assist Hannah and Sam in Medical.
Thor Thor did a lot of fighting and patroling. He took the shifts that no one really wanted. Being a god, he probably is a lot less exhausted than the others, so he'll be happy to help with rebuilding and such. At the end, when the lightening was hitting, Thor did his best to channel it to himself, so that as few people as possible would be hurt.