Marnix Verduyn was working in the financial services when he decided it was time for a career move. Leaving the security of his steady job behind, in a few years he developed himself to be one of the most prominent hopes of Belgian comix under his pen name Nix. He has published his work in Le Vif Focus, Yeti, PAN, Spirou, Le Feraille Illustré, De Standaard, De Morgen and Focus Knack.
He became the topical cartoonist for De Morgen and eventually created the absurd gag strip 'Kinky & Cosy' for this paper in October 2001. The comic has been collected in books by Silvester, and was adapted into animation films for the Belgian TV show 'Volt'. The strip has also appeared in Dutch magazines Incognito and MYX, but is nowadays published directly in albums, although it also appears in Dutch magazine Eppo since January 2012.
Another notable creation by Nix is the 'Café du Commerce' newspaper comic for De Standaard. The comic 'Ief de Chief' was a hilarious parody of the tensions between the commercial and editorial divisions of the De Morgen newspaper. It was published in the very same Belgian daily, featuring spine-chilling portraits of the newspaper's sportscar-driving owner and main editor. His comic strip about the aspiring cowboy 'Billy Bob' has appeared in Spirou and was nominated for best children's comic at the Angoulême Comics Festival in 2012. The first book was published in Dutch by Blloan and in French by Les Requins Marteaux.
Additionally, Nix was present in Zone 5300 with the photo comic 'Kwakzalver en Knettergek'. Nix has published his cartoons and comix in anthologies like 'Hardnekkige vlekken' since 1998. His work is nowadays published in Dutch by Silvester and in French by Le Lombard. Nix has also made comics and cartoons for anthologies and seasonal books like 'Hic Sunt Leones', 'Hippoliet en Zeno in de Ruimte', 'Fin de Semaine', and 'De XII Werken van Vanoudenhoven'. He is a teacher in cartooning with the Comics Section of the Saint-Luc in Brussels, and is also active as a stand-up comedian, comics reviewer for Studio Brussel and animator for TMF.
Since 2016 he is on the editorial board of the Flemish comics information magazine Stripgids, together with comic artists Simon Spruyt, Marc Legendre and Judith Vanistendael, and journalists Karl van den Broeck and Roel Daenen.