Born in Auckland, New Zealand, to a New Zealand father and a Scottish mother, Wakarua is a naturalised Italian, having moved there in 1999. He was brought into the Italy squad for the 2003 Rugby World Cup having only played in the second tier of the Italian league and had not even been involved in squad get-togethers. His performance with the boot saw Italy overcome Canada in Canberra. He has 11 caps and has scored 99 points for Italy.