Thank you for the welcome!
1) This is the base game campaign. I only mentioned the GM mode as a vector for a solution. Sorry for any confusion there.
2) Human Players.
3) I think I am using bad verbiage here. I totally mean the Origin Characters. It has been a little while now so I cant say for certain but we created our origin characters, and our buddy joined not long after (still in starter area). He very well might be one of the companion/henchmen characters as I think he was one that we encountered on the beach that offered to join the team.
I think what I am really asking for is the ability to change a Henchmen/Companion Character to a Origin Character. The player I am speaking about is missing out on anything that is specific to the origin characters, I think.
Thank you for you help in advance.