5. Brendon McCullum (New Zealand) – 2,140 runs
Former New Zealand cricketer Brendon McCullum was one of the most explosive batsmen in limited-overs cricket. During his international career, McCullum was a nightmare of every bowler. McCullum played T20I cricket for New Zealand between 2005 and 2015. After playing 71 T20Is, McCullum scored 2,140 runs with an average of 35.66. The aggressive right-handed batsman has scored two centuries and 13 half-centuries in T20I career, including his best knock – 123 runs.