Kazimieras Gediminas Prapuolenis[1] (born July 31, 1959), known professionally as Kaz, is an American cartoonist, animator, writer, storyboard artist, and illustrator.

In the 1980s, after attending New York City's School of the Visual Arts, he was a frequent contributor to the comic anthologies RAW and Weirdo.

Kaz has also worked on several animated television shows including SpongeBob SquarePants, Camp Lazlo, and Phineas and Ferb.

Kaz joined SpongeBob SquarePants as a storyboard director and writer in 2001 during the production of the series' third season and was paired with C. H. Greenblatt.

In September 2006, Kaz left Camp Lazlo to work on another pilot for a Cartoon Network show, Zoot Rumpus, based on a character from Underworld.