Lydia Reed is an American former child actress best known for her role as Tallahassee "Hassie" McCoy from 1957 to 1963 in 145 episodes of the ABC situation comedy The Real McCoys, starring Walter Brennan in the title role of Grandpa Amos McCoy. Irving Pincus was the creator and Hy Averback the first principal director. An episode of the series prominently featuring Reed called "Sweet Fifteen" aired on April 9, 1959. It centers on Grandpa's determination to keep Hassie's looming fifteenth birthday party a secret.After its five-year run on ABC, The Real McCoys switched to CBS for its final season in 1962–63 without the services of Kathleen Nolan as Kate McCoy. Reed appeared less frequently in the final year, as did Michael Winkelman (1946–1999) as Little Luke McCoy, who played Reed's younger brother on the series.Reed's first performances were in 1952 episodes of two NBC anthology series, Hallmark Hall of Fame (the second episode of the series, entitled "Dr. Serocold") and Robert Montgomery Presents. In 1955, she played Mary Foy in the Bob Hope film The Seven Little Foys. That same year, she played another "Mary" in the episode "Ride with the Executioner" of the anthology Jane Wyman Presents the Fireside Theatre. In 1956, she appeared in the role of Caroline Lord in High Society with Bing Crosby, Frank Sinatra, and Grace Kelly and in the episode "Hit and Run" of the NBC series Big Town. Her last role other than that of Hassie McCoy was as Betsy Beecher in the horror film The Vampire.Reed left acting after her role on The Real McCoys ended and did not appear in a 2000 cable television reunion special (The Nashville Network) with Nolan, Tony Martinez, who portrayed farmhand Pepino Garcia, and Richard Crenna, who played Luke McCoy, Hassie's older brother, for the entire duration of the series.