Proctor scored his first NRL career try in Round 2 against the Brisbane Broncos in the Storms 16–14 loss at Suncorp Stadium.[10] In Round 7, Proctor suffered an ankle injury and didn't play first grade for the Storm for the rest of the year,[11] playing in the NYC. On 15 June 2009, Proctor extended his contract with the Melbourne Storm to the end of the 2011 season.[12] Proctor played in the Storm's NYC Grand Final team against the Wests Tigers playing off the interchange bench in the 24–22 win.[13] Proctor played in 7 matches for the Storm in 2009 and was named the club's Rookie of the Year.[14]
2010
Proctor played off the interchange bench the Storm's 2010 World Club Challenge 18–14 win over Leeds Rhinos.[15] He finished the club's drama filled season with 22 appearances. Proctor played for the Māori team against England off the interchange bench in the 18–18 draw.[16]
2011
In April, Proctor signed an extension to take him through until the end of the 2014 season.[17] He played in all of the Storm's 26 matches, scoring 4 tries. Proctor toured with the New Zealand national rugby league team squad during the 2011 Four Nations tournament but didn't play a match.[18]
For the Anzac Test, Proctor again represented the Kiwis in their 32–12 loss to Australia. In Round 24 in the Storm's smashing 64–4 win over the Parramatta Eels, he played in 100th career NRL match.[22][23] Proctor finished the year with 23 matches and 3 tries for the Storm. He was selected the Kiwis World Cup train-on squad but did not make the final 24-man squad.[24]
2014
In February, Proctor was included in the Storm's inaugural Nines squad.[25] He played for New Zealand in the 2014 Anzac Test in the Kiwis 30–18 loss.[26] On 27 May, Proctor re-signed with the Storm, keeping him at the club till the end of the 2018 season.[27] He finished the season playing in all of the Storm's 25 matches and scoring 5 tries. Proctor was selected in the Kiwis squad for the Four Nations series.[28] He scored his first international try in the Kiwis 30–12 win over Australia at Suncorp Stadium,[29] and went on to play in the victory over Australia in the final.[30]
On 6 May, Proctor played for the Kiwis against Australia, starting at second-row in the 16-0 loss.[35] In the 2016 NRL Grand Final against the Cronulla-Sutherland Sharks, Proctor started at second-row in the Storm's 14-12 loss.[36][37] He finished the season with 24 appearances and 6 tries. Selected for the Kiwis Four Nations side,[38] he played in 4 matches and scored 1 try in the tournament, including in the Kiwis 34-8 Final loss against Australia.[39]
Proctor warming up with the Kiwis ahead of the Four Nations Final at Anfield in 2016
On 2 November, Proctor was released from his contract with the Storm and signed a 4-year deal with the Gold Coast Titans starting in 2017, an ideal signing for the club after losing senior forwards Greg Bird and Luke Douglas to the Super League and the retirement of hooker Nathan Friend. Proctor commented about the signing, "This is a great opportunity to return home to the Gold Coast with my young family to be closer to all of our family. It has been a long process and I needed to feel comfortable with the decision as I have had a successful time at the Melbourne Storm and made some great friends but now I am looking forward to joining Neil and the Titans players and contributing to the team's success."[40][41]
Proctor started the 2019 NRL season as one of the Gold Coast's first choice second-rowers as the club lost their first 4 games. On 25 July, he was named one of the club's co-captains. Following their round 20, 58-6 loss to the Sydney Roosters, Proctor wrote an apology letter to the club's fans which said "As a playing group, we were humiliated, embarrassed and appalled at the result and the way that we played as a team, I don't have any explanation for why the game panned out the way it did, It has been a hard year, and you deserve better than the results we have delivered, and we're sorry. We will not give up. We hope that you will not give up on us".[45][46]
Proctor made a total of 22 appearances for the Gold Coast as the club endured a horror year on and off the field. During the halfway mark of the season, head coach Garth Brennan was sacked by the club after a string of poor results. The Gold Coast managed to win only 4 games for the entire season, claiming the wooden spoon.[47][48]
On 18 August, Proctor was found guilty of biting Johnson and suspended for four matches.[50]
2021
Proctor played 23 games for the Gold Coast in the 2021 NRL season including the club's elimination final loss against the Sydney Roosters.[51]
2022
On 25 July, Proctor was terminated by the Gold Coast club after he uploaded to Instagram a video of himself vaping during the half time interval at the Western Sydney Stadium. He was not playing in the club's round 19 match against Canterbury but was on the reserves list. Proctor was also fined $15,000 by the club.[52]
On 31 October 2022 it was confirmed that Proctor had signed for Wakefield Trinity on a one-year deal.[53]
2023
Proctor made his club debut for Wakefield Trinity in round 1 of the 2023 Super League season against the Catalans Dragons which saw Wakefield lose 24-38.[54]
In round 11 against Warrington, Proctor was given a red card for a dangerous high tackle during Wakefield's 32-18 loss.[55]
Proctor played 20 matches for Wakefield Trinity in the Super League XXVIII season as the club finished bottom of the table and were relegated to the RFL Championship which ended their 24-year stay in the top flight.[56]
