Alan John "A. J." Buckley is an Irish–Canadian actor. He is best known for playing Adam Ross on CSI:NY (2005-2013), Sonny on SEAL Team (2017-present) and for playing Ed on Supernatural (2006-2014). And for his movie roles, such as The Box (2007), Home Sweet Hell (2015), and for the voice of Nash in The Good Dinosaur (2015).