1987 - 1990 - Star Trek: The Next Generation
1995 - 1995 - Lifestories: Families In Crisis" (Robert)
Mini Series and Specials:
1991 - Star Trek 25th Anniversary Special (TV) (Himself)
1997 - Trekkies (Himself)
1999 - Star Trek: TNG Companion (Acting Ensign Wesley Crusher)
2002 - Arena (TV) (Co-host)
Tv Movies:
1981 - A Long Way Home (Donald Branch (8))
1982 - The Shooting (Amos Cotter)
1986 - The Defiant Ones (Clyde)
1986 - Long Time Gone (Mitchell)
1987 - Young Harry Houdini (Ehrich Weiss/young Harry Houdini)
1987 - The Man Who Fell to Earth (Billy Milton)
1989 - My Father Can't Be Crazy... Can He?
1998 - The Day Lincoln Was Shot (Robert Todd Lincoln)
Voice Acting and Narration:
2001 - The Flintstones: On the Rocks (voice) (as Willie Wheaton) (Bass Singer)
Movies:
1982 - The Secret of NIMH (Martin)
1984 - Hambone and Hillie (Jeff Radcliffe)
1984 - The Last Starfighter (scenes deleted) (Louis' Friend)
1984 - The Buddy System (Tim)
1986 - Stand by Me (Gordie Lachance)
1987 - The Curse (Zachary Hayes)
1988 - She's Having a Baby
1991 - Toy Soldiers (Joseph 'Joey' Trotta)
1991 - December (Kipp Gibbs)
1991 - The Last Prostitute (TV) (Danny)
1993 - The Liars' Club (David Reynolds)
1995 - It Was Him or Us (TV) (Scottie)
1995 - Mr. Stitch (TV) (Lazarus)
1996 - Pie in the Sky (Jack)
1996 - Boys Night Out (Marco)
1997 - Flubber (Bennett Hoenicker)
1997 - Tales of Glamour and Excess (Danny Sugerman)
1998 - Fag Hag (Owner of Christian Books and Nails)
1999 - Foreign Correspondents (Jonas)
2000 - The Girls' Room (Charlie)
2000 - Deep Core (Rodney Bedecker)
2000 - Python (Tommy)
2001 - Speechless
2001 - Jane White Is Sick & Twisted (Dick Smith)
2001 - Good Things, The (Zach Means)
2001 - Fish Don't Blink (Jimmy)
Writer:
2002 - Arena (TV)