Douglas Richard TenNapel is an American animator, writer, cartoonist, video game designer, and comic book artist whose work has encompassed animated television, video games, and comic books. He is best known for creating Earthworm Jim, a character that spawned a video game series, animated series, and a toy line. He is also the creator of the animated television series Catscratch (2005–2007), which aired on Nickelodeon, and was itself a loose adaptation of TenNapel's comic book limited series Gear.

Earthworm Jim is an American animated television series based on the video game series of the same name that aired on The WB's Kids' WB strand for two seasons from September 9, 1995, to December 13, 1996. A co-production between Universal Cartoon Studios and Flextech Plc and based on the video game series of the same name from Playmates and Shiny Entertainment with characters created by Doug TenNapel, the series follows the adventures of the titular character who battles the forces of evil using a robotic suit.