His father, Trevor Wisdom, is from Jamaica and his mother, Grace Knight, is from Barbados.

[2][3][1] Knight-Wisdom's diving career began in 2004; he has said that he took up the sport after seeing it at the 2004 Summer Olympic Games.

[2] Knight-Wisdom has said of himself that "I am a 190 cm tall, 90 kg heavy, black diver... Watch a diving event and that is not something you will see very often.

"[1][5] In 2012, Knight-Wisdom decided to represent Jamaica in international competition; he had been eligible to compete for Barbados or Great Britain, but had struggled to get in the British team.

[5][6] Knight-Wisdom competed at the 2014 Commonwealth Games, making him Jamaica's first-ever male Commonwealth diving competitor;[a] Knight-Wisdom finished fifth in the 1 metre springboard event, and eleventh in the 3 metre springboard event.