Henry King Ketcham (March 14, 1920 – June 1, 2001), better known as Hank Ketcham, was an American cartoonist who created the Dennis the Menace comic strip, writing and drawing it from 1951 to 1994, when he retired from drawing the daily cartoon and took up painting full time in his home studio. In 1953, he received the Reuben Award for the strip, which continues today in the hands of other artists.
Ketcham started in the business as an animator for Walter Lantz and eventually Walt Disney, where he worked on Pinocchio, Fantasia, Bambi and several Donald Duck shorts. During World War II, Ketcham was a photographic specialist with the US Navy Reserve. He also created the character Mr. Hook for the Navy during World War II and four cartoons were made (one by Walter Lantz Productions in color and three by Warner Bros. Cartoons in black and white). Also while in the Navy he began a camp newspaper strip, Half Hitch, which ran in The Saturday Evening Post beginning in 1943. After World War II, he settled in Carmel, California, and began work as a freelance cartoonist. In 1951, he started Dennis The Menace, based on his own four-year-old son Dennis Ketcham.