
Alan John 'A.J.' Buckley (born February 9, 1977) is an Irish-Canadian actor. He is known for playing nerdy crime lab technician Adam Ross on the CSI: NY (2005–2013) and Navy SEAL Sonny Quinn on the series SEAL Team (2017–). 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).

Bones
TV • 2005

Supernatural
TV • 2005

CSI: Crime Scene Investigation
TV • 2000

The Mentalist
TV • 2008

The X-Files
TV • 1993

Hawaii Five-0
TV • 2010

Without a Trace
TV • 2002

CSI: NY
TV • 2004

Hunting Season
MOVIE • 2025

Entourage
TV • 2004

SEAL Team
TV • 2017

Longmire
TV • 2012

Justified
TV • 2010

Teenage Mutant Ninja Turtles
TV • 2012

Teenage Mutant Ninja Turtles
TV • 2012

Narcos
TV • 2015

Millennium
TV • 1996

The District
TV • 2000