High Quality Content by WIKIPEDIA articles! Rear Admiral Albert Jethro `A.J.` Chegwidden JAGC, USN (Ret.), played by John M. Jackson, was the Judge Advocate General of the Navy until his retirement in May 2004 on the television series JAG. Chegwidden succeeded Rear Admiral Al Brovo, USN, played by Kevin Dunn, in 1996 and his successor is Major General Gordon M. Cresswell, USMC, played by David Andrews. Not only being the superior of Harmon Rabb, Jr. and Sarah MacKenzie, he often instinctively turned into a missing father figure—providing not only comical relief, but also a reflection on their respective personal backgrounds.