Lt. Cmdr. Paul O'Brien is a fictional character portrayed by Paul Cassell in the TV series JAG.
In the first episode they appeared in, titled The Man on the Bridge (season 10), they were 37 years old.
They appear in 1 episodes out of a total of 227 aired
Episodes1
The Man on the Bridge
episode S10.E9 december 2004A biowarfare expert disappears, apparently by suicide; Harm, Mac, and the FBI investigate. A woman Marine has filed a petition to allow women to compete with men in boxing; Bud investigates, and the general changes his mind in a ring.