Awesome!  If Sam's player wants to play a ranger, I'm happy to go with cleric, to get us some more healing.  I like that some are choosing to come into the session with undecided characters too.  Though I have real-life experience with D&D, I think it could be fun to play someone who has no idea how this works.  I've listened to the full Vox Machina campaign of Critical Role, and most of the second one as well, though I wish I could see everyone's mannerisms and facial expressions, and the cool maps Matt uses.