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 Tina Leigh 1 guest appearances Dan Lander 1 guest appearances Fran Glass 1 guest appearances Major General Richard Plesac 1 guest appearances The Director 1 guest appearances ZNN Reporter 1 guest appearances CAPT Millstein 1 guest appearances SCPO Schilling 1 guest appearances Drew Stickney 1 guest appearances Seaman Recruit 1 guest appearances Charlie Lynch 1 guest appearances NCIS Agent Mary Holland 1 guest appearances Dar-Lin Lewis 1 guest appearances Lizbeth Rawlings 1 guest appearances Barkeeper 1 guest appearances Police Officer 1 guest appearances Corporal Barry 1 guest appearances Sentry 1 guest appearances MCPO Calloway 1 guest appearances Eddie 1 guest appearances ⇤ « 7 8 9 10 11 12 13 14 15 16 » ⇥