Joseph Lockard "Lock" Martin Jr. (October 12, 1916 – January 19, 1959) was an American performer afflicted with gigantism. Martin and a twin brother were born in South Philadelphia, Pennsylvania; his brother died in childbirth.[1]
Martin would eventually grow to over 7 feet tall by adulthood, though his exact height was reported inconsistently.[2] He became notable for appearing as the robot Gort in The Day the Earth Stood Still (1951).[3] Despite his size, he had difficulty moving in the heavy robot suit, and during scenes in which he was supposed to lift and carry either Patricia Neal or Michael Rennie, they were either held up by wires, or replaced with lightweight dummies.[2]