Question: What is the name of this American actor, based known for a role on Roseanne, who also starred in Morgan's Ferry?
Sentence (from "Johnny Galecki"): Galecki also appeared in the films "National Lampoon's Christmas Vacation" (1989), "Prancer" (1989), "Suicide Kings" (1997), "I Know What You Did Last Summer" (1997), "Bookies" (2003), and "In Time" (2011).
Relevant evidence: No