Jason Bateman and his older sister, Justine Bateman, both grew up in the spotlight. While Jason is known for getting his start as James Cooper Ingalls on Little House on the Prairie when he was 11 years old, Justine's big break came at age 16 when she played Mallory Keaton on Family Ties. Justine later explored passions behind the camera, with several writing and directing roles under her belt. Justine also started a family with husband Mark Fluent in 2002.