The term 'Missing Star' refers to three famous actors: Jack Lemmon, 6 letters; Spacek, 6 letters; and Jack Lemmon, 10 letters. Jack Lemmon was an American actor who won two Academy Awards for his performances in the films 'Mister Roberts' and 'Save the Tiger'. Sissy Spacek is an American actress who won an Academy Award for her performance in the film 'Coal Miner's Daughter'. Jack Lemmon, Jr. is an American actor and the son of Jack Lemmon, who has appeared in several films, including 'My Cousin Vinny' and 'OUTBREAK'.