Rex Linn
Does the name Major Mark Sokol AKA Falcon ring a bell? Well, after his JAG days were over, he succeeded in Hollywood. There was the series The Fugitive, his role in Cheaper by the Dozen, and of course, his role as Frank Tripp on CSI: Miami.
Cliff De Young
When he was on the set of JAG, he starred as Chuck DePalma. Following his time on the show, he played John Ramsey in Getting Away with Murder: The JonBenet Ramsey Mystery, and then on The Young and the Restless as Agent John Bonacheck.