Whitman Blount Mayo Jr. (November 15, 1930 – May 22, 2001) was an American actor, best known for his role as Grady Wilson on the 1970s television sitcom Sanford and Son. Biography Early years Whitman Blount Mayo, Jr. was born in New York City. He was raised in Harlem and later Queens. At the age of 17, he moved with his family to Southern California where he attended Fontana High School. Mayo enlisted in the United States Army, serving from 1951 to 1953 during the Korean War. Upon discharge, he studied at Chaffey College, Los Angeles City College, and UCLA. Career While attending college, Mayo began acting in small parts. He held many jobs to support himself and his family, including waiting tables, working in vineyards and as a probation officer. He also spent seven years as a counselor to delinquent boys. In the early 1970s, while working for the New Lafayette Theatre, Norman Lear offered Mayo a role as Grady Wilson on Sanford and Son. The character's name was based on Demond Wilson, the actor who played Lamont Sanford and whose real first name is Grady. During a period where Redd Foxx did not appear on the show due to a contract dispute, Grady moved into the Sanford house and effectively starred in the show for six episodes. Mayo later starred in Grady, an unsuccessful spin-off in which his character moved in with his daughter and her husband in Beverly Hills. After its cancellation in 1976, Mayo's Grady character returned to Sanford and Son. Mayo reprised the role in the unsuccessful 1977 NBC-TV spinoff series Sanford Arms with actor Theodore Wilson, and for two episodes of Sanford, another spinoff of Sanford and Son, this time with Redd Foxx and actor Dennis Burkley, in 1981. Also in the late 1970s, Mayo appeared on the Los Angeles children's television program That's Cat, offering sage advice in a sweet manner to the main character Alice. In 1990, he appeared in an episode of In the Heat of the Night titled "Hello in There". In 1991, he appeared in an episode of Full House titled "The Volunteer". He played a senior named Eddie Johnson with Alzheimer's. In 1996, Late Night with Conan O'Brien spent several weeks trying to have Mayo appear on the show. Conan even went as far to set up the "Grady Hotline", a 1–800 number where viewers could call in