The NCIS universe will be welcoming a familiar face — David James Elliott.

Elliott is set to reprise his JAG character, Captain Harmon “Harm” Rabb Jr., in a multi-episode arc on NCIS: Los Angeles.

The actor’s debut on the long-running show is set for May 12, marking the first time the actor will appear on any NCIS series.

It will also be the first time that Elliott returns to his iconic role as the former pilot-turned-lawyer working for the Navy’s Judge Advocate General (JAG) division since 2005.

Hit CBS military drama JAG, which ran for 10 seasons from 1995-2005, led to a spinoff of the NCIS franchise. Chris O’Donnell and LL Cool J currently star on NCIS: Los Angeles, which has been on the air since 2009.

In the upcoming episode titled “The Guardian,” the NCIS team uncovers ISIS sympathizers who plan to attack U.S. aircraft carriers. The terrorism threat will lead Callen (O’Donnell) and Sam (LL Cool J) to work directly with Captain Harm, who will be the XO Captain on the USS Intrepid.

Elliott, 58, will also reunite with NCIS: Los Angeles executive producer/showrunner R. Scott Gemmill, who formerly wrote and produced on JAG.

“I was really excited to get a chance to work with David again,” Gemmill said. “I did the first four seasons of JAG with him, so to be able to work together again in and of itself is great — but to do so with the same character on our show [NCIS: Los Angeles] this many years later — that’s pretty damn amazing.”

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“Bringing Harmon Rabb to work with NCIS: Los Angeles makes for a formidable coalition,” he added. “Both entities are going to need all the help they can get when confronted with the greatest challenge of their careers.”

The big news comes six years after a lawsuit was settled around NCIS: Los Angeles, filed by the franchise’s creator Don Bellisario against CBS Studios.

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In 2011, Bellisario alleged in a lawsuit that CBS denied him of the right to work on the NCIS: Los Angeles spinoffs after he left NCIS — despite having it written in his contract.

Elliott’s appearance on NCIS: Los Angeles marks the network’s largest effort to date in reconnecting the hit franchises.

Since JAG, Elliott has starred in ABC’s Secrets and Lies and appeared in a number of other shows, including Mad MenCSI: NY, Scorpion and YouTube Premium’s Impulse. He also appeared in the movie Trumbo in 2015.

Elliott is currently in production on Netflix’s upcoming figure skating series Spinning Out and recently shot a guest spot on season two of Netflix’s The Kominsky Method.

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