Eudora Anitta Riviera, but most people know her as 'Buttercup' is the the Golden Girl of Sioux Falls. Perfect grades with honors. Co-captain of the gymnastic team. Waiting list in one of the best universities. But there was still few people who had an issue with her being the only niece of the town's most hated drunk. Bobby Singer. (Season 5-15) *I HAVE DO NOT OWN NOR HAVE RELATIONS TO ANYTHING OR ANYONE TO SUPERNATURAL OR WARNER BROS.*