John M. Jackson

Description   [from Freebase]

John Murice Jackson (born June 1, 1950 in Baton Rouge, Louisiana) is an American actor, best known for playing Rear Admiral A. J. Chegwidden on the CBS series JAG. John was forced to use his middle initial "M." for his professional name because there was already a "John Jackson" registered with the Screen Actors Guild when he joined the union. SAG rules prohibit two or more members from using the same name. (Another actor by the name of John E. Jackson is sometimes confused with John M. Jackson; both use middle initials for the same reason.) Before JAG, Jackson played as a JAG Officer in A Few Good Men in 1992 as Capt. West. Jackson played Rear Admiral Albert Jethro 'A.J.' Chegwidden, Judge Advocate General of the United States Navy. He had a recurring role as FBI Deputy Director Sam Cullen in the first season of Fox series Bones. He appeared in the series finale of Jericho as the ambassador of Texas to the Allied States of America. He portrayed a C-130 pilot Gus in the NBC series Knight Rider and has recently appeared on CSI: Crime Scene Investigation. Jackson was born in Louisiana but raised in Ft Worth, Texas. He played football in high school.
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