Special Appearances
Donald P. Bellisario

JAG's creator, Donald P. Bellisario played himself in 'Father's Day' (S3) and Hugh Blackadder in 'To Russia With Love' (S4).
JAG; Commander Harmon Rabb; Lieutenant Colonel Sarah MacKenzie; Lieutenant Commander Bud Roberts
Charles Floyd Johnson

Charles Floyd Johnson, JAG's Co-Executive Producer, played Toxicologist Bruce Gadsen in season four's 'Nobody's Child', season six's 'Past Tense', season ten's 'Retrial' and 'Dream Team'.
JAG; Admiral AJ Chegwidden; Major General Gordon Cresswell, Petty Officer 1st Class Coates
Vivian Bellisario

Vivian Bellisario, Donald Bellisario's wife, played Viv, Clayton Webb's fencing partner in 'Need to Know' (S8).
JAG; Lieutenant Harriet Sims; Commander Sturgis Turner; Lieutenant Greg Vukovic
Harriet Margulies

Harriet Margulies, a JAG production insider, played a Quantum Leap fan (another TV show created by Don Bellisario) in 'Father's Day' (S3).
JAG; Commander Harmon Rabb; Lieutenant Colonel Sarah MacKenzie; Lieutenant Commander Bud Roberts
Baby Labyorteaux

**Totally Unconfirmed**
Patrick Labyorteaux's son as baby Reese in 'Code of Conduct' (S8).
JAG; Admiral AJ Chegwidden; Major General Gordon Cresswell, Petty Officer 1st Class Coates
Adam Beason

Adam Beason, Catherine Bell's husband played Petty Officer Malaty in 'The Adversaries' (S4), Mitch the bass player in 'Ghosts of Christmas Past' (S5), and Captain Rayburn in 'To Walk on Wings' (S6).
JAG; Lieutenant Harriet Sims; Commander Sturgis Turner; Lieutenant Greg Vukovic
Trisha Yearwood

Trisha Yearwood, a big-time country artist, played Lieutenant Commander Teresa Coulter in 'The Return of Jimmy Blackhorse' (S3), 'Nobody's Child' (S4), 'Shakedown' (S4), 'Body Talk' (S5), 'Past Tense' (S6), and 'In Country' (S7).
JAG; Commander Harmon Rabb; Lieutenant Colonel Sarah MacKenzie; Lieutenant Commander Bud Roberts
Oliver North

Oliver North, a retired Marine officer, played himself in the season one episodes 'Desert Son' and 'Hemlock' and the season eight episode 'Ready or Not'.
JAG; Admiral AJ Chegwidden; Major General Gordon Cresswell, Petty Officer 1st Class Coates
Troian Bellisario

Daughter of JAG's creator, Don Bellisario, Troian Bellisarion played Erin Terry in season three episode 'Tiger, Tiger'.
JAG; Commander Harmon Rabb; Lieutenant Colonel Sarah MacKenzie; Lieutenant Commander Bud Roberts
Donald J. Guter

The real Navy Judge Advocate General from 2000-2002, Admiral Guter sorta played himself, he appeared as Admiral Guter, only he wasn't the JAG, just a colleague of Admiral Chegwidden's.