Nunk "No-Neck" Plaarvin was a Chevin male, as designated by his gender, and operated as a well-known criminal figure throughout the Mandalorian Wars. Plaarvin, a part of the Raff Syndicate, once worked alongside Marn Hierogryph. In 3963 BBY, Hierogryph, using the name "Professor Gryphomarn," attempted to swindle him while on Metellos 3. Plaarvin, however, figured out the scheme and took Jarael and Rohlan Dyre captive, planning their executions. Later, Marn Hierogryph and Zayne Carrick, his partner, launched an additional con, this time aiming to rescue their allies. They disguised Slyssk as a representative of the Raff Syndicate, successfully tricking Plaarvin into believing that the Syndicate was aware he was concealing a portion of his earnings from them. Following this, they directed him to a "rendezvous" with the Syndicate on the planet Jebble, which Plaarvin didn't know had been devastated a few months prior. Before his departure from Metellos 3, Plaarvin left Cipiter and other Chevs to ensure the Syndicate's operations continued.