The actor first made a dent in feature as the voice of Martin in "The Secret of NIMH" (1982) and had his first lead in "The Buddy System" (1984), playing Susan Sarandon's son who fixes her up with Richard Dreyfuss. On the small screen, Wheaton broke into TV-movies playing an eight-year old trying to keep his family together in "A Long Way Home" (ABC, 1981). In 1982, he was a regular on the short-lived "The Billy Crystal Comedy Hour" (NBC) and had the title role in "Young Harry Houdini" (ABC, 1987). In 1991, he was a youth who, along with a pal, sets out to find "The Last Prostitute" (Lifetime), only to discover she's Sonia Braga and she now raises horses. In 1996, he was a concocted creature in Roger Avary's "Mr. Stitch", a film originally intended for theatrical release that wound up as a world premiere on the Sci-Fi Channel. Wheaton has remained active in occasional features, such as "Pie in the Sky" (1995) and "Flubber" (1997).