Ty Keegan Simpkins (born August 6, 2001) is an American child actor. In the filmsPride and Glory and Revolutionary Road, he appears with his real-life sister Ryan Simpkins. In 2013, Simpkins starred alongside Robert Downey, Jr. in the live-action film Iron Man 3, as Stark's sidekick, Harley, the first time a child has been featured prominently in the Iron Man films. Additionally, he played Dalton in James Wan's horror films Insidious and Insidious: Chapter 2.