OddGirl
Dungeon Spirit
Yeah, I had the same issue. What you want to do is go into your "steam/steamapps/common/Terraria" folder. Under "players", take the character you want, and then go into the "ModLoader" file and paste the character in that "players" folder. Rinse and repeat for the worlds you want!
Thanks Spyke! This will make them available in vanilla Terraria after that? Just making sure I appreciate the help