Kamille was all "ZOMG DON'T YOU CALL ME A GIRL I'LL PUNCH YOUR HEAD OUT!!!111"
"ZOMG My family suckkkkkks my dad's having an affair and my mom doesn't do anything about it!!!111" "ZOMG I knew it youre not quattro bajeena youre char aznable, eat my correction fist!!!111" in the beginning. But he grows out of it eventually.
Well, I suppose that most Gundam main characters grows out of their anger and angst.
I still don't think Amuro was angry or angsty though.
He was whiney in the beginning.