Everett Greenbaum (December 20, 1919 – July 11, 1999) was an American television and film writer and actor who contributed to such shows as The Andy Griffith Show (24 Episodes), M*A*S*H (35 Episodes), Love American Style, The Real McCoys (32 Episodes), Sanford and Son, and The George Gobel Show. Greenbaum was a co-creator with Jim Fritzell of Mister Peepers an important early television show which starred Wally Cox. He wrote the Hollywood feature film Good Neighbor Sam, as well as a series of films starring Don Knotts that included The Shakiest Gun in the West, The Reluctant Astronaut, and The Ghost and Mr. Chicken.