Alan John "A. J." Buckley (born February 9, 1978) Buckley appeared in the 1998 thriller science fiction film, Disturbing Behavior, alongside actress Katie Holmes. In 2001 he starred in an indie film Extreme Days a comedy-drama-romance flick. In 2005, Buckley was offered the part of Adam Ross on the hit crime drama CSI: NY. The part was supposed to be a recurring role, but by the end of the show's third season in 2007 he was offered a five-year contract. Before receiving the role of Adam Ross, Buckley had appeared as a different character on the original CSI: Crime Scene Investigation in a 2004 episode.

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