Halkett left South Africa in 2010 to play for Den Bosch in the Dutch Hoofdklasse.

Halkett began playing for the South African national team in 2009.

[3] He competed at the 2010 Hockey World Cup in India, the 2010 Commonwealth Games in India, the 2012 Summer Olympics in England, the 2014 Hockey World Cup in The Netherlands, the Commonwealth Games.

In August 2020 he was appointed as the assistant coach of the Netherlands women's national team.

This biographical article relating to a South African field hockey figure is a stub.