Rory Pitman committed to the Knights for the 2019/20 Championship season in February.
The Welshman arrived in November on a short-term deal that saw him impress enough to be offered a contract until the end of the season, which was then turned into a new one-year-deal at Castle Park.
The back row has a wealth of experience behind him with stints at Jersey Reds, Scarlets, Wasps, Ospreys and Rotherham Titans in his career.
Rory also made an impressive 26 appearances for the Scarlets in his debut season for the Welsh Pro14 side in 2014.
The 29-year-old has played 12 times since joining in November, dotting down on four occasions.