Don Grady, who played Robbie Douglas on the 1960s hit My Three Sons and started his career as a Mouseketeer, has died of cancer. He was 68.
Grady's My Three Sons co-star Barry Livingston, who played youngest brother Ernie, confirmed the June 27 death on Friday.
Livingston said Grady had been receiving hospice care at his home in Thousand Oaks, California while he was battling cancer.
Born Don Louis Agrati in San Diego on June 8, 1944, Grady started his acting career by singing and dancing on The Mickey Mouse Club at age 13.
But he was best known for playing big brother Robbie on My Three Sons, which ran from 1960 to 1972.
He appeared in more than 300 episodes, which turned him into a heartthrob, and was the cover boy for numerous teen magazines.
Grady also appeared in other shows including The Rifleman and Wagon Train and formed a pop singing group called the Yellow Balloon.
He is survived by his wife and two children.