I adore Walter. He is one of my favorites. I also love Astrid, and it really irritates me that she is always cast aside and never has a huge part. I love both of the Charlies too.
Peter isn't bad.....and I like Broyles too!
This is the one show though, where I can't stand the main character. Olivia bothers me........a lot. I liked Olivia from the other side more.