Luke Edward McGarry (born 11 October 1987) is a British illustrator, cartoonist, animator and designer based in Los Angeles. He is engaged to actress Jillian Bell.

McGarry was the lead visual artist for Festival Supreme, an annual Los Angeles comedy and music festival, created by Jack Black and Kyle Gass of Tenacious D, which was staged from 2013 to 2017. In addition to posters, stage design and backdrops, projections and merchandising art, in 2015 he also collaborated with his brother to create a series of five 30-second animated TV commercials, sponsored by Geico, which ran on the IFC network. Operating as The Fantastic Heat Brothers, they wrote, designed, and animated the series, with voiceovers provided by Black and Gass.