Denzel Washington as Lt. Commander Ronald "Ron" Hunter

Gene Hackman as Captain Franklin "Frank" Ramsey

Matt Craven as Lt. Roy Zimmer

George Dzundza as Chief of the Boat Cob

Viggo Mortensen as Lt. Peter 'Weps' Ince

James Gandolfini as Lt. Robert 'Bobby' Dougherty

Rocky Carroll as Lt. Darik Westergard

Jaime Gomez as Officer of the Deck Mahoney

Michael Milhoan as Chief of the Watch Hunsicker

Scott Burkholder as Tactical Supervising Officer Billy Linkletter

Danny Nucci as Petty Officer Danny Rivetti

Lillo Brancato as Petty Officer Third Class Russell Vossler Russell Vossler

Eric Bruskotter as Bennefield

Rick Schroder as Lt. Paul Hellerman

Steve Zahn as Seaman William Barnes

Marcello Thedford as Lawson

R.J. Knoll as Marty Sotille

Billy Devlin as Navigator

Matthew Barry as Planesman

Christopher Birt as Helmsman

Jim Boyce as Diving Officer

Jacob Vargas as Sonarman #2

Kai Lennox as Sonarman #3

Michael D. Weatherred as Radioman #1

Tommy Bush as Admiral Williams

Earl Billings as Rick Marichek

Mark Christopher Lawrence as Head Cook Rono

Michael Chieffo as Chief Kline

Ashley Smock as Guard #1

James Lesure as Guard #2

Trevor St. John as Launcher

Dennis Garber as Fire Control Technician

Vanessa Bell Calloway as Julia Hunter

Brenden Jefferson as Luke

Ashley Calloway as Robin

Daniel von Bargen as Vladimir Radchenko

Richard Valeriani as Richard Valeriani

Warren Olney as Anchorman

Rad Daly as Lt. Comdr. Nelson

Sean O'Bryan as Phone Talker

Victor Togunde as Sailor with Oba

Troy A. Cephers as Sailor #1

Armand Watson as Seaman Davis

Brent Goldberg as Phone Talker #2

Scott Grimes as Petty Officer Hilaire

Ryan Phillippe as Seaman Grattam

Dale Andre Lee Everett as Firing Key Runner

Angela C. Tortu as Ramsey Aide

Ronald Ramessar as Westergaurd Dad

Robin Faraday as Westergaurd Mom

Bob Stone as Bob the Magician

Henry Mortensen as Henry Ince

Chris Ellis as Additional Magician

Mo Gallini as Seaman Kuhne (uncredited)

Jason Robards as Rear Admiral Anderson (uncredited)

Marianne Hettinger as Board of Inquiry Member (uncredited)

Skip Beard as Board of Inquiry Member (uncredited)