Brett Koth (born January 25, 1960) is an assistant of Jim Davis, and a co-creator of the comic strip Mr. Potato Head.
From a young age, Koth was interested in being an artist. In the early 1980s, Koth began his first work as a caricature artist for theme parks in Southern California. He was soon able to get into the California Institute of the Arts where he soon graduated in 1983 with a BFA in classical character animation. He started his career working for studios such as Sullivan Bluth Studios, Filmation, Marvel and Disney. While working at Disney in 1986, he overheard a conversation that Jim Davis was looking for an art assistant for his new comic strip, U.S. Acres. Koth sent in his portfolio, and was phoned by Davis who revealed Koth had gotten the job.
Aside from U.S. Acres, Brett has written for the Bugs Bunny comic strip, the Looney Tunes comic book and other Warner-Bros. projects. Apart from comics, Koth has designed multiple other things such as calendars, greeting card, fun books, menus, logo art, promotional concepts and arts, imagineering and has designed characters and presentation artwork for proposed animated series for Film Roman and Nickelodeon Studios. Since March 1st, 2010, Koth has been writing and drawing his own comic strip, Diamond Lil, published by GoComics.