Proctor and Ryan James were announced as the Titans co-captains for the 2017 season. In Round 1, Proctor made his debut for Titans against the Sydney Roosters, where he started at second-row in the 32-18 loss at Cbus Super Stadium. After the Anzac Test, Proctor and Kiwis team mate Jesse Bromwich were caught on a police CCTV camera, showing the two consuming cocaine. Proctor was suspended and stripped off his Gold Coast Titans captaincy, and missed out on the Rugby League World Cup near the end of 2017.