NCIS: Los Angeles cast has great guest-star for new episode called The Guardian: Who plays Harmon Rabb?

Monsters and Critics - 05-12

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The NCIS: Los Angeles cast has an impressive guest star for the new episode called The Guardian. Navy Captain Harmon “Harm” Rabb Jr. will be stopping by the show. As advertised by CBS, Callen (Chris O’Donnell) and Sam (LL Cool J) will travel to the USS Allegiance in the Persian Gulf. While there, they will work with Harm Rabb when the team learns about ISIS sympathizers targeting military locations.