Thank you for acceptance to this wonderful community! I'm Peaches and I'm playing James "Bucky" Barnes. Crunkalious told me about this place and I had to app here.
James has been taken from the end of Winter Soldier when he just got his memories back. Like, just crushed the cube and teleported away to deal with his grief over the things he's done. He's now shown back up and Registered because it was the right thing to do. He's surprised to see Captain America didn't register and he'll have words with him over then soon enough.