Began acting in TV commercials at age five
Billed as Keith Coogan, made his feature acting debut in "Adventures in Babysitting"
Co-starred as Clovis, an orphan who becomes a ward of cowboy, in the CBS TV-movie "Tales of the Apple Dumpling Gang"
Had leading role in the feature "Toy Soldiers"
TV-movie debut, "A Question of Love" (NBC)
Had featured role in a busted NBC pilot based on "Norma Rae"
Starred in "A Town's Revenge", an "ABC Afterschool Special"
Starred in "Downhill Willie"
Was regular on the ABC TV series "The MacKenzies of Paradise Cove"
Had recurring role on the ABC family comedy-drama "Eight Is Enough" (ABC), billed as Keith Mitchell
Made TV debut in "This Is Your Life" salute to his grandfather
Reprised role of Clovis in four of six episodes of the short-lived series spin-off "Gun Shy"; Coogan was replaced by Adam Rich for the other two episodes
Billed as Keith Mitchell, provided character voice for the Disney animated film "The Fox and the Hound"
Changed surname from Mitchell to Coogan to honor his grandfather (date approximate)
Joined regular cast of the long-running CBS family drama, "The Waltons"