Barbara Feldon (born Barbara Hall on March 12, 1932 in Pittsburgh, Pennsylvania) is an American actress and model. She graduated from Carnegie Mellon University in 1955, shortly after which she won $64,000 (USD) on The $64,000 Question in the category of William Shakespeare.
She was most famous for her character Agent 99 in the television comedy series Get Smart, starring with lead Don Adams. When she was cast for the role, she was previously famous, although anonymously, appearing on a tigerskin rug in an advertisement for Top Brass men's cologne.
After Get Smart ended, Feldon was strongly typecast. She appeared in an episode of Mad About You as Diane "Spy Girl" Caldwell, an actress who was trying to shake her typecasting as Spy Girl in a series similar to Get Smart.
Twice-divorced and New York City-based, Feldon has appeared on stage and on guest spots on TV shows, including in her old role as "99" in a brief sequel to the old Get Smart series, which had the same name, co-starring her old star Don Adams and new actor Andy Dick, in 1995.