A professional actor from the age of three, Corey Feldman was kept busy early on with innumerable TV commercials and voice-overs. Feldman's first regular television work was a recurring role in Mork and Mindy (1978-1982), followed by the part of Regi Tower in the weekly sitcom version of The Bad News Bears (1979). He made his earliest film appearance as the inquisitive kid in the museum in Time After Time (1979). In the early '80s, Feldman showed up in several episodes of the syndicated Madame's Place (1982) and played precocious-brat roles in such fantasy flicks as Gremlins (1984) and The Goonies (1985). During this period, he also provided the voice of the Young Copper in the Disney animated feature The Fox and the Hound (1980). His breakthrough role, at age 14, was as the battered, bespectacled small-town hell-raiser Teddy Duchamp in Rob Reiner's Stand by Me (1986). Feldman's acting career then went into decline, leaving him with few professional choices outside of minor roles in features such as Maverick (1994) and leads in direct-to-video movies. His most successful post-Stand by Me venture was as the voice of Donatello in the first two Teenage Mutant Ninja Turtles movies. In many of his latter-day efforts, Feldman co-starred with his offscreen best friend Corey Haim, another youthful performer.