Main Characters Captain Harmon "Harm" Rabb Jr., USN 227 main appearances Captain Bud J. Roberts Jr., USN 96 main appearances Lieutenant Colonel Sarah "Mac" MacKenzie, USMC 99 main appearances Rear Admiral A.J. Chegwidden, USN 86 main appearances Lieutenant Harriet Sims-Roberts, USN 50 main appearances Yeoman First Class (YN1) Jason Tiner, USN 49 main appearances Lieutenant Commander Mic Brumby, CSC, RAN 40 main appearances Gunnery Sergeant Victor Galindez, USMC 37 main appearances Lieutenant Loren Singer, USN 19 main appearances Special Agent Clayton Webb 15 main appearances Commander Peter Ulysses "Sturgis" Turner, USN 20 main appearances Lieutenant, Junior Grade Megan "Meg" Austin, USN 20 main appearances Legalman First Class (LN1) Jennifer "Jen" Coates, USN 10 main appearances Midshipman Third Class Michael "Mikey" Roberts, USNA 3 main appearances Rear Admiral Thomas "CAG" Boone, USN 3 main appearances Major General Gordon "Biff" Cresswell, USMC 4 main appearances Commander Caitlin "Kate" Pike, USN 2 main appearances Lieutenant Gregory Vukovic, USN 2 main appearances
Recurring Guest Characters Dr. Mallory 1 guest appearances Annabel Hart 1 guest appearances Angelique Sonsiri 1 guest appearances Sheriff Brad Driskell 1 guest appearances Navy Captain 1 guest appearances Senior Member 1 guest appearances Katelyn Maat 1 guest appearances Judge Merryweather 1 guest appearances ENS Drews 1 guest appearances CAPT Bouchard 1 guest appearances CAPT Winston 1 guest appearances Lt. Mantei 1 guest appearances CAPT Garland 1 guest appearances Dr. Beth Salluci 1 guest appearances Lt. Isabele Maat 1 guest appearances Seth Maat 1 guest appearances Lt. Sandy Winters 1 guest appearances Elena Motley 1 guest appearances Col. Pittman 1 guest appearances Solla Jong 1 guest appearances ⇤ « 1 2 3 4 5 6 7 8 9 10 » ⇥