Penning a two-year contract with the Raiders, Nicoll-Klokstad will begin training with the club immediately.
With the ability to play a number of positions, the 23-year-old New Zealander could be a possible replacement for the injured Jordan Rapana on the wing.
Nicoll-Klokstad told Raiders.com.au of his intentions for 2019.
“I’m looking to play at fullback, however any position in the NRL I would be grateful for.
“I can’t wait to meet all the team and start working hard.”
The fullback position may be vacated Nicoll-Klokstad, with Jack Wighton set to make the switch to five-eighth this season.
Speaking to Raiders.com.au, Raiders Recruitment and High-Performance director Peter Mulholland nodded to the versatility the new signing brings to the club.
“Charnze is a very talented player who can play wing, fullback and in the halves.
“We’re looking forward to him joining the squad and getting himself ready for the season ahead.”
Nicoll-Klokstad has played seven NRL games since making his debut for the Warriors in Round 9, 2017.
He has also represented the Cook Islands at International Test level.
Nicoll-Klokstad and the Raiders will face a Round 1 trip away to Cbus Super Stadium to take on the Gold Coast Titans on Sunday 17th March.