Lt./Lt. Cmdr. Harmon "Harm" Rabb, Jr.

David James Elliott

Maj./Lt. Col. Sarah "Mac" MacKenzie

Catherine Bell

Lt. j.g./Lt. Bud Roberts

Patrick Labyorteaux

Adm. A.J. Chegwidden

John M. Jackson

Harriet Sims / Phyllis Diller / Jonie James

Karri Turner

Cmdr. Sturgis Turner

Scott Lawrence

Petty Officer Jennifer Coates

Zoe McLellan

Jason Tiner / Petty Officer First Class Jason Tiner / Archie Bond

Chuck Carrington

Victor 'Gunny' Galindez

Randy Vasquez

Clayton Webb

Steven Culp

Clifford Blakely

John DeMita

Guest Star

Bill Cobbs

Guest Star

Wade Williams

Senator Edward Sheffield

Dean Stockwell

Loren Singer / Meghan O'Hara

Nanci Chambers

Guest Star

Adam Baldwin

Sadik Fahd

Bernard White

Guest Star

Richard McGonagle

Guest Star

Jerry Coyle

Guest Star

Dan Lauria

Guest Star

Douglas Spain

Mic Brumby

Trevor Goddard

Guest Star

Tamara Mello

Guest Star

Tony Lee

Guest Star

Michael Bofshever

Edward Hardy

Jack Stehlin

Cmdr. Amy Helfman

Jennifer Savidge

Capt. Molina

Del Zamora

Guest Star

Lyman Ward

Guest Star

Michaela Conlon

Guest Star

William Russ

Guest Star

Steven Flynn

Guest Star

John Dennis Johnston

Guest Star

Chris Ellis

Guest Star

Christopher Maher

Maria Elena

Alana De La Garza

Guest Star

Sean O'Bryan

Meg Austin

Tracey Needham

Guest Star

Jeffrey Pierce

Guest Star

Lamont Thompson

Guest Star

Tom Schanley

Guest Star

Loryn Locklin

Guest Star

Andrew Caple-Shaw

Guest Star

Nicki Micheaux

Guest Star

Winifred Freedman

Guest Star

Tyrees Allen

SecNav Alexander Nelson / Alexander Nelson / John C. Spencer

Paul Collins

Guest Star

Josh Blake

Guest Star

Jeremy Davidson

Guest Star

Sammi Rotibi

Guest Star

Jessica Stier

Rene Peterson

Cindy Ambuehl

Guest Star

Kyme

Guest Star

Steven Anderson

Stiles Morris

Harrison Page

Guest Star

Bahar Soomekh

Guest Star

Donnie Jeffcoat

Guest Star

Michael Ensign

Mikey Roberts / Antonio

Michael Bellisario

Guest Star

Ned Schmidtke

Guest Star

Eric Strickland

Guest Star

Melinda Sward

Alan Mattoni / Lt. Cmdr. Alan Mattoni

Rif Hutton

Guest Star

Dawn Didawick

Guest Star

Maria Quiban

Mattie Grace Johnson

Hallee Hirsh

Guest Star

Ben Livingston

Guest Star

Mary Ellen Lyon

Guest Star

Alexander Scarlis

Guest Star

Scott Rabinowitz

Bobbi Latham

Anne-Marie Johnson

Guest Star

John Prosky

Stuart Dunston

John D'Aquino

Guest Star

Chuck De Caro

Guest Star

Russell Edge

Admiral Thomas Boone / Thomas Boone

Terry O'Quinn

Ted Lindsey / Cmdr. Ted Lindsey / Captain Stewart

W.K. Stratton

Big Bud Roberts

Jeff MacKay

Carolyn Imes

Dana Sparks

Sidney Walden

Cynthia Sikes

Alison Krennick

Andrea Thompson

Jordan Parker

Susan Haskell

Chloe Madison

Mae Whitman

Lt. Gregory Vukovic

Chris Beetem

Dalton Lowne

Larry Poindexter

Cahill / First Sergeant Creed / Seal Instructor

Matt Sigloch

Clark Palmer

Peter Murnik

Mark 'Falcon' Sokol / Submarine Skipper

Rex Linn

Ned Bannon / Capt. French

Glenn Morshower

Danny Walden / Terry Guitry

Sean Murray

Lt. Alfred Aldridge

A.J. Tannen

Lt. Elizabeth 'Skates' Hawkes / Elizabeth 'Skates' Hawkes

Sibel Ergener

Teresa Coulter / Lt. Cmdr. Teresa Coulter

Trisha Yearwood

Kate Pike / Cmdr. Caitlin 'Kate' Pike

Andrea Parker

Tom Hart / Captain Trecher / Jeb Stuart Wilkins

Guy Garner

Ross

Bill Bolender

Annie Pendry

Daphne Ashbrook

Meredith Cavanaugh / Maryann Cavendish

Isabella Hofmann

Admiral Drake

John Roselius

Chief of Chaplains / Chaplain

Scott Haven

Capt. Tobias Ingles / Gary Hochausen

Gary Graham

Director

Jeannot Szwarc

Director

Bradford May

Director

Terrence O'Hara

Director

Donald P. Bellisario

Director

Stephen Cragg

Director

Kenneth Johnson

Director

Jeannot Szwarc

Director

Tony Wharmby

Director

Ray Austin

Director

Alan J. Levi

Director

Greg Beeman