Addison Morton Walker (born September 3, 1923), popularly known as Mort Walker, is an American comic artist best known for creating the newspaper comic strips Beetle Bailey in 1950 and Hi and Lois in 1954. He has signed Addison to some of his strips.

Born in El Dorado, Kansas, he grew up in Kansas City, Missouri. He had his first comic published at age 11, and sold his first cartoon at 12. At 15, he worked as a comic-strip artist for a daily newspaper, and by 18 became chief editorial designer at Hall Brothers. Graduating from Northeast High School, he attended the University of Missouri, where today a life-sized bronze statue of Beetle Bailey stands in front of the alumni center.

In 1943, Walke...