Brian Bonsall is a former child star born in 1981 and best known for his roles as "Andy Keaton" on the mid-1980s TV show Family Ties and as “Preston Waters” in the 1994 Disney movie Blank Check. I’ve never seen Blank Check, but I looked it up and discovered that it actually performed fairly well, taking in $30 million in theatre ticket sales. What I remember Bonsall from was his role on Family