Bruce Willis as John McClane

Timothy Olyphant as Thomas Gabriel

Justin Long as Matt Farrell

Cliff Curtis as Deputy Director Miguel Bowman

Maggie Q as Mai Linh

Jonathan Sadowski as Trey

Mary Elizabeth Winstead as Lucy McClane

Andrew Friedman as Casper

Kevin Smith as Warlock - Frederick Kaludis

Yorgo Constantine as Russo

Cyril Raffaelli as Rand

Chris Palermo as Del

Sung Kang as Agent Raj

Zeljko Ivanek as Asst. Deputy Director Molina

Christina Chang as Agent Taylor

Jake McDorman as Jim

Rosemary Knower as Mrs. Kaludis

Gerald Downey as Hoover Agent

Allen Maldonado as Goatee

Jim Cantafio as Deli Owner

Chris Ellis as Capt. Jack Scalvino

Regina McKee Redwing as Nearby Agent

Tony Colitti as Chief Hazmat Agent

Tim DeZarn as Police Sergeant

Kurt David Anderson as Miller

Matt O'Leary as Clay

Nadine Ellis as Teller

Ethan Flower as Trader

Nick Jaine as Phone Guy

Tim Russ as Agent Chuck Summer

Joe Gerety as Jack Parry

Edward James Gage as On Duty PP Operator

David Walrod as Deli Customer

Edoardo Costa as Emerson

John Reha as Slacker Kid

Yancey Arias as Agent Johnson

Rick Cramer as MP Rodriguez

Vito Pietanza as DC Cop

Dennis Depew as DC Cop

Howard Tyrone Ferguson as DC Cop

John Lacy as EMT

Diana Gettinger as FBI Dispatcher

Melissa Knowles as Freeway Reporter

Alex Richard as Don Albert (uncredited)

Bryon Weiss as Robinson (uncredited)

Elena Nikitina Bick as Newscaster (uncredited)

Michael Papajohn as Gabriel's Henchman (uncredited)

Charles Grisham as Gabriel's Main Terrorist (uncredited)

Andy Dylan as Terrorist Blown Up by Fire Extinguisher (uncredited)

Peter Epstein as Terrorist Truck Driver (uncredited)

Chad Stahelski as Terrorist (uncredited)

Brock Little as Terrorist (uncredited)

Matt McColm as Terrorist (uncredited)

Clay Cullen as Assassin (uncredited)

Mark Falvo as FBI Special Agent (uncredited)

Katherine Hoskins Mackey as FBI Agent (uncredited)

Alexander Kanellakos as FBI Agent (uncredited)

Jonathan Lane as FBI Agent (uncredited)

Maciek Sokalski as FBI Agent (uncredited)

Sydney Jay as Junior FBI Agent (uncredited)

Michael Molthen as FBI Tech Analyst (uncredited)

Nicole Nogrady as FBI Tech Analyst (uncredited)

Timothy 'TJ' James Driscoll as SWAT Member with Walkie (uncredited)

Neal McNeil as DC Police Officer (uncredited)

David Haverty as Police Officer (uncredited)

Brian Smyj as Police Officer (uncredited)

Tim W. Walker as DC Firefighter (uncredited)

Skip Wright as EMT (uncredited)