[4] After the departure of the Hurricanes' long-serving midfield combination, Ma'a Nonu and Conrad Smith, Proctor became a regular starter for the club in 2016.
[5] However, Proctor lost his place in the starting lineup in 2017, after struggling with injury, while midfield team-mates, Vince Aso and Ngani Laumape, were the top two scorers of the competition for the year.
Having re-gained his place in the Hurricanes' starting XV in the 2018 Super Rugby season, Proctor was then named as Wellington's Captain for the 2018 Mitre 10 Cup, succeeding England international flanker, Brad Shields, as the team's leader.
[6][7] On 11 January 2019, Proctor signed a three-year deal with English Premiership side Northampton Saints ahead of the 2019–20 season.
[8] Proctor was a member of the New Zealand Under 20 team which competed in the 2012 IRB Junior World Championship in South Africa.