Fergal O'Brien is an Irish retired professional snooker player who competed on the World Snooker Tour from 1991 to 2024. He won one ranking title during his career, defeating Anthony Hamilton 9–7 in the final of the 1999 British Open. He was runner-up at the 2001 Masters, where he lost the final 9–10 to Paul Hunter. His best performance at the World Snooker Championship was reaching the quarter-finals of the 2000 event, where he lost 5–13 to eventual champion Mark Williams. He reached his highest world ranking of ninth in the 2000–01 season, but spent only three seasons of his 33-year career ranked inside the top 16. He retired from professional competition at the end of the 2023–24 season, intending to remain active in the sport as a coach and a commentator for Eurosport.

Mark James Williams is a Welsh professional snooker player who is a three-time World Champion, winning in 2000, 2003 and 2018. Often noted for his long potting ability, Williams has earned the nickname "The Welsh Potting Machine".