From Wikipedia, the free encyclopedia. Gary Lockwood (born February 21, 1937) is an American actor perhaps best known for his iconic 1968 role as the astronaut Dr. Frank Poole in 2001: A Space Odyssey. He is father of the actress Samantha Lockwood. Both currently live in Los Angeles. Description above from the Wikipedia article Gary Lockwood, licensed under CC-BY-SA, full list of contributors on Wikipedia.