
Acting
From Wikipedia, the free encyclopedia.
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.)

Gifted
as Judge Edward Nichols

The Glimmer Man
as Donald

The Spitfire Grill
as Johnny B. / Eli

Dark Skies
as Charles Pratt

Forgotten Sins
as Wayne Everett

Kansas
as Harvey Purvis

Roswell
as Colonel Blanchard

Dead Man's Revenge
as Beesly

On Promised Land
as Albert Appletree

The American Clock
as Brewster

Stalker
as Douglas Jeffries · 1 ep.

Perception
as Vincent · 1 ep.

Rizzoli & Isles
as Howard Ames · 1 ep.

Castle
as Rod Halstead · 1 ep.

NCIS: Los Angeles
as A.J. Chegwidden · 6 ep.

Private Practice
as Carl Davis · 1 ep.

John from Cincinnati
1 ep.

Jericho
as Ambassador Sam Travis · 1 ep.

Grey's Anatomy
as Kevin Covington · 1 ep.

Criminal Minds
as Agent Malcolm Hollins · 1 ep.
The Hitcher
1986