Tony Hill, a retired Kiwi umpire, started in '98, oversaw 150+ matches in all formats, joined ICC Elite Panel in '09, and coached NZ Cricket umpires post-retirement.
Srinivas Venkataraghavan captained India in the first two World Cups and later became the sole Indian ICC Elite Panel umpire in 1993.
Daryl Harper, an Australian, joined ICC's Elite Panel in 2002, after a 17-year umpiring career, starting in 1987 and officiating his first ODI in 1994.
Rudi Koertzen, iconic for his goatee and shades, officiated 100+ tests and 200+ ODIs. His slow finger-raise style was legendary.
Billy Bowden, the famous Kiwi umpire, gained fame for his unique signals and joined the ICC Elite Panel in 2002, featuring in ICC tournaments for a decade.
Cricket legend Aleem Dar, the only active umpire here, made his debut in 2000 and is still going strong after 19 years. He's officiated in ICC tournament finals and won best umpire award.
Steve Bucknor, despite criticism from Indians over Sachin Tendulkar and 'Monkeygate,' had a remarkable 20-year umpiring career, making him one of cricket's best. Debuting in 1989.
David Shepherd, a cricket legend, excelled as a batsman with 10,000+ First-class runs. After retiring in 1979, he joined umpiring, marking the '83 World Cup.
Simon Taufel of Australia won the David Shepherd Best Umpire award five consecutive times (2004-2008), starting at 24 due to a cricket injury and excelling until retiring in 1999.
Marais Erasmus, a South African ex-cricketer, is now an ICC Elite Panel umpire, officiating in all international cricket formats.