Rex David Thomas was an American businessman, philanthropist, and fast-food tycoon. Thomas was the founder and chief executive officer of Wendy's, a fast-food restaurant chain specializing in hamburgers. In this role, Thomas appeared in more than 800 commercial advertisements for the chain from 1989 to 2002, more than any other company founder in television history.

Wendy's is an American international fast food restaurant chain founded by Dave Thomas on November 15, 1969, in Columbus, Ohio. Its headquarters moved to Dublin, Ohio, on January 29, 2006. As of December 31, 2018, Wendy's was the world's third-largest hamburger fast-food chain with 6,711 locations, following Burger King and McDonald's. On September 29, 2008, the company merged with Triarc Companies Inc., the publicly traded parent company of Arby's; Wendy's headquarters remained in Dublin. Triarc then became known as Wendy's/Arby's Group, and later as the Wendy's Company following the sale of Arby's to Roark Capital Group.