Friz (Isadore) Freleng was born in Kansas City and attended Westport High School, where he drew cartoons for the school's publications from 1919 to 1923. To earn extra money, he worked as a caddy at the Kansas City Country Club. He had a natural talent for cartooning and was completely self taught. While still in high school, he worked for the United Film Service at 24th and Charlotte Streets, along with Walt Disney, U.B. Iwerks, and other local cartoonists.