Sam:
Sam is Dominant
In the bed, he is referred to as "Daddy" by Tommy and/or Paulie
He is also the leader of the pack, so he tells them what to do and how to do it.
Sam is quiet...too quiet.
Now, spoilers here!!
Sam loved Paulie, and killing him hurt him, so when Tommy came and got revenge, Sam felt he was at peace.
Tommy:
Tommy is the bottom
If he is dating Paulie, he refers him to "Daddy" and he takes care of Paulie
If he is with Sam, he just calls him Sammy or (if in bed) Master
He has a bondage kink
Paulie:
Paulie is a bottom. Change my mind
Paulie loves Sam and Tommy both, but he bottles up his feelings
He talks shit about himself because it's how he truly feels
