Home People Mason Vale Cotton Mason Vale Cotton movies Mason Vale Cotton movies Mason Vale Cotton Movies (11) Hey Arnold! The Jungle Movie (2017) As Arnold (voice). He was 15 years old Scales: Mermaids Are Real (2017) As Martin. He was 15 years old Mad Families (2017) As Chuckie. He was 14 years old Russell Madness (2015) As Max. He was 12 years old Snake & Mongoose (2013) As Tommy (at 7). He was 11 years old Prep & Landing: Totally Tinsel Collection (2012) As Timmy Terwelp. He was 10 years old Happy Feet Two (2011) As Additional Voices (voice). He was 9 years old Prep & Landing (2009) As Timmy Terwelp. He was 7 years old The Spleenectomy (2008) As Casper. He was 6 years old A Dennis the Menace Christmas (2007) As Futuristic Boy (uncredited). He was 5 years old Nicktoons (1969) As Arnold (voice).
