Jock Ewing

John Ross "Jock" Ewing Sr. is a fictional character in the American television series Dallas created by David Jacobs. Jock was played by Jim Davis in the show's first four seasons from 1978 to 1981, and as a young man by Dale Midkiff in the made-for-TV movie prequel The Early Years in 1986. Jock founded Ewing Oil in 1930 and was the patriarch of the Ewing family.