Alan John Buckley (born 9 February 1977) is an Irish-Canadian actor. He is known for playing nerdy crime lab technician Adam Ross on the television series CSI: NY (2005–2013) and Navy SEAL Sonny Quinn on the television series SEAL Team (2017–present). He also had roles in Supernatural (2006–2014), The Box (2007), Home Sweet Hell (2015), and as the voice of Nash in The Good Dinosaur (2015).

Early life
Buckley was born on 9 February 1977 in Dublin, Ireland. He immigrated at the age of six with his family to White Rock, British Columbia, Canada.

In his teens, Buckley began his acting career in the television series The Odyssey followed by guest starring roles in The X-Files and Millennium.

Buckley attended St. Thomas More Collegiate in Burnaby, near Vancouver.