Gattlin Tadd Griffith (born November 13, 1998) is an American actor, best known for portraying Walter Collins in the 2008 film Changeling. He also had episodic roles on TV series such as Supernatural. Griffith was born to film stuntman Tad Griffith and wife Wendy Morrison Griffith, and is the fourth generation of a champion trick riding and equestrian gymnastics family. His paternal grandfather, Dick Griffith, is in the ProRodeo Hall of Fame and the National Cowboy Hall of Fame, and his paternal grandmother, Connie Rosenberger Griffith, is in the National Cowgirl Hall of Fame. He has three younger brothers, Callder West, Arrden Hunt and Garrison Cahill. He now plays football for the Santa Clarita Warriors and he attends Bishop Alemany High School class of 2017. He starred in the films Under the Bed and Labor Day.