Overview

Don Grady (born Don Louis Agrati; June 8, 1944 – June 27, 2012) was an American actor, musician and composer. He first gained wide recognition as one of the original Mouseketeers on the 1950s television variety show and later became a familiar face to U.S. audiences for his long-running role as Robbie Douglas on the family sitcom My Three Sons. After more than a decade in front of the camera, he turned his attention to music and composition while maintaining ties to television and stage work.

Career and principal roles

Grady’s entertainment career began in childhood. As a Mouseketeer he was part of an ensemble that introduced many young performers to national television audiences, and he remained active in television throughout his youth. His best-known dramatic role was Robbie Douglas, the eldest son on My Three Sons. Grady played Robbie for the bulk of the series’ run, becoming one of the program’s steady anchors as the show moved through the changing styles of 1960s television.

Following his years on the sitcom, Grady shifted emphasis from acting to music. He worked as a musician and composer, writing songs and scores for television, films and theatrical productions. He was a multi-instrumentalist with a grounding in popular styles of his era and remained involved in occasional acting projects and reunions that celebrated mid‑century television history.

Personal life and family

Born in San Diego, California, Grady was the son of Lou A. Agrati and Mary Grady, who worked as a talent agent. His sister, billed as Lani O'Grady, also pursued acting. Don Grady used a stage name professionally, a common practice for performers of his generation.

He was married twice: first to Julie Boonisar from 1976 to 1979, and later to Virginia Lewsader from 1985 until his death. Don Grady died at his home in Thousand Oaks, California, on June 27, 2012, after a battle with cancer. He was 68 years old.

Legacy and notable facts

  • Early television pioneer: Grady’s work as a Mouseketeer placed him among the group of child performers who helped shape family entertainment on TV in the 1950s. See a general overview of the series here.
  • Long-running sitcom presence: His decade-plus tenure on My Three Sons made him a recognizable figure for American audiences during the 1960s and early 1970s.
  • Musical career: After leaving regular acting, Grady concentrated on composing and performing music for stage and screen, applying the skills he had developed as a performer.
  • Family connections in show business: His sister, Lani O'Grady, and his mother’s work in talent representation reflect a family involvement in the entertainment industry.

Selected points of interest

  1. Birth name: Don Louis Agrati; professional name: Don Grady.
  2. Born June 8, 1944, in San Diego, California; later based in Southern California for much of his career. See regional background here.
  3. Best-known credits: original Mouseketeer and the role of Robbie Douglas on My Three Sons.
  4. Died June 27, 2012, in Thousand Oaks, California; remembered for both his television work and his later musical output.