Sean was born November 15, 1977 in Bethesda, Maryland, USA and began acting in 1991 first appearing in the TV movie Backfield in Motion. He appeared in the 1993 films This Boy's Life and Hocus Pocus and was in the 1993 TV series Harts of the West.

Sean had a starring role in the UPN series The Random Years, a supporting role in the series Harts of the West, and appeared in numerous TV movies & guest-spots on TV (including ER) before landing a recurring role on the TV series JAG. That series led to the TV series NCIS of which he also had a recurring role on to start, and was later made a full-fledged cast member in the 3rd season.

He is the step-son of Donald Bellisario, who created and executive produces both JAG and NCIS.

Sean is married to Carrie James (since November 26, 2005), and they have a daughter, Caitlyn Melissa Murray ( born May 3, 2007).

Bio from: tv.com

Trivia

He attended Bonita Vista Junior High (now Bonita Vista Middle) in Chula Vista, CA.

He is a huge fan of David Lynch's work.

Sean listens primarily to electronic music. Some of his favorite artists are Aphex Twin, Venetian Snares, and Datach'i.

His step sister, Troian Avery Bellisario, plays McGee's sister on NCIS.

He is the step son of Donald P. Bellisario.

Sean has a daughter, Caitlyn Melissa (born 2007).

McGee Montage