Brian Eric Bonsall (born December 3, 1981) is an American rock musician, singer, guitarist and former child actor. He is perhaps best known for his roles as Andrew "Andy" Keaton, the youngest child on the NBC sitcom Family Ties from 1986 until 1989, and Alexander Rozhenko, the son of Worf and K'ehleyr, on Star Trek: The Next Generation from 1992 to 1994.

Filmography

• Hollywood Demons — Self - Child Actor, Family Ties
• 2022You're Melting! — Dr. Love
• 100 Greatest Kid Stars
• 1995Santa's Christmas Snooze
• 1994Blank Check — Preston Waters
• 1994Father and Scout — Michael Paley
• 1994Lily in Winter — Michael Towler
• 1993Distant Cousins — Alex Sullivan
• 1993Father Hood — Eddie Charles
• 1992Mikey — Mikey
• 1990Angel of Death — Josh
• 1990Mother Goose Rock 'n' Rhyme — Michael
• Parker Lewis Can't Lose — Andrew Keaton
• Shades of L.A.
• Booker — Billy
• 1989Do You Know the Muffin Man? — Teddy Dollison
• The Super Mario Bros. Super Show!
• Day by Day — Andy Keaton
• 1988Go Toward the Light — Zack
• 1988Mickey's 60th Birthday — Andy Keaton
• Star Trek: The Next Generation — Alexander Rozhenko
• Family Ties — Andy Keaton

Appearances as themselves (3)

• 2021Alien Danger! With Raven Van Slender — Self
• Where Are They Now? — Self
• 1987Jay Leno's Family Comedy Hour — Self