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.

Anthony Stephen Hamilton is an English professional snooker player. He has spent five seasons ranked among the game's elite Top 16 and fifteen in the Top 32, reaching a career-high of number ten in the world in the 1999/2000 season. Hamilton is a four-time World Championship quarter-finalist, a Masters semi-finalist and he has compiled more than 300 century breaks during his long career. He won his first ranking title in 2017, beating Ali Carter 9–6 in the final of the German Masters, doing so at the age of 45.