Jack Kent dropped out of high school to go into commercial art. While still a teen, he sold some of his gags to Collier's agency. After serving in World War II, fighting in Alaska and the South-Pacific, he got a job in a printing plant and commenced working as an independent illustrator. In 1950, he created his first comic, 'King Aroo'. It ran until 1965, and has been distributed by the McClure, Bell and Golden Gate Features syndicates. Another short-lived strip by Kent was 'Why Christmas Almost Wasn't', distributed by N.E.A. in 1968.
Afterwards, Kent disappeared from the comic scene, reportedly to work as a truck driver. He came back as an illustrator of children's books, one of which earned him the Chicago Graphics Award. He also contributed drawings to Humpty Dumpty, The Saturday Evening Post and Playboy, and illustrated a great many Hallmark postcards. He died in 1985.