Cassidy
Just make sure you're out of his way. When he gets going, he's not the most discriminate when it comes to who he hurts. At least, the version of him I knew wasn't.
I like to think Navi can take care of herself, but I'm going to try and convince her to take Iggy to the house out West- miles away from the nearest town. Hard to be harassed by idiots when there's none around.