I'm only doing this because @Crysta convinced me to. There's been a lot of games over the years, and I'm probably not remembering all of them but I'll try to recall what I can. Yeah, I know I'm missing a couple of places in the past.
Steel and Stone - Aeron Nayland and Kain
Eternal Crusade - Marcus <something>(ditched because Nermal was crazy)
Game of Kings - <something> Sollinger(though that was before the game opened)
Fifth World - Cedric Orelle, Flint Grantham, Solace Temple
Game of Bones - Some kooky old mage hunter can't remember the name.
Fallcoast - Lucius <something>. Cop and Giest never really got to play him
BITN - Jacob Solomon(shortly lived but fun)
Star Crusade - John Solomon
Realm Adventurous - Lainn Laverstock, Cole, and Arngeir Shrewton
CoMUX - Peter Quill, Thunderstrike
Battlestar Unification - Jacob Marx