Home People Mason Cook Mason Cook movies Mason Cook movies Mason Cook Movies (10) If There Be Thorns (2015) As Bart Sheffield. He was 14 years old Help for the Holidays (2012) As Will Vancamp. He was 12 years old The Lone Ranger (2013) As Will. He was 12 years old Monsters University (2013) As Additional Children's Voices (voice). He was 12 years old The Incredible Burt Wonderstone (2013) As Young Burt. He was 12 years old Mockingbird Lane (2012) As Eddie Munster. He was 12 years old Wyatt Earp's Revenge (2012) As Conrad - 1878. He was 11 years old Treasure Buddies (2012) As Pete Howard. He was 11 years old The Indestructible Jimmy Brown (2011) As Eddie Baxter. He was 11 years old Spy Kids: All the Time in the World (2011) As Cecil Wilson. He was 11 years old
