NCIS Special Agent Scout and John Abraham, portrayed by Rebecca Breeds and Luke Mitchell co-starred in Australian soap opera Home and Away and are also married off-screen.
The U.S. military has its own legal system: the Uniform Code of Military Justice. In the Marine Corps, the attorneys who represent their fellow Marines are called Judge Advocates. Judge Advocates are active-duty Marines, each of whom are eligible to serve as a prosecutor, a defense attorney... or to be assigned to a combat post.
Several of the cast come from a Broadway background, notably Phillipa Soo (Lt. Harper Li), Derek Klena (Lt. Adam Turnbull), and Aaron Tveit (Matt Dobbins).
MAVNI is short for Military Accessions Vital to the National Interest, allows certain non-citizens who are legally present in the United States to join the U.S. military and apply immediately for U.S. citizenship.
1st Civ Div or First Civilian Division, is part of the argot used by Marines, referring to persons who discharge out of the service.