Bruce Willis

John McClane

Timothy Olyphant

Thomas Gabriel

Justin Long

Matt Farrell

Cliff Curtis

Deputy Director Miguel Bowman

Mary Elizabeth Winstead

Lucy McClane

Jonathan Sadowski

Trey

Margaret Denise Quigley

Mai Linh

Maggie Q

Andrew Friedman

Casper

Kevin Smith

Warlock - Frederick Kaludis

Yorgo Constantine

Russo

Cyril Raffaelli

Rand

Chris Palermo

Del

Sung Kang

Agent Raj

Željko Ivanek

Asst. Deputy Director Molina

Christina Chang

Agent Taylor

Jake McDorman

Jim

Rosemary Knower

Mrs. Kaludis

Gerald Downey

Hoover Agent

Allen Maldonado

Goatee

Jim Cantafio

Deli Owner

Chris Ellis

Capt. Jack Scalvino

Regina McKee Redwing

Nearby Agent

Tony Colitti

Chief Hazmat Agent

Tim DeZarn

Police Sergeant

Kurt David Anderson

Miller

Matt O'Leary

Clay

Nadine Ellis

Teller

Ethan Flower

Trader

Nick Jaine

Phone Guy

Tim Russ

Agent Chuck Summer

Joe Gerety

Jack Parry

Edward James Gage

On Duty PP Operator

David Walrod

Deli Customer

Edoardo Costa

Emerson

John Reha

Slacker Kid

Yancey Arias

Agent Johnson

Rick Cramer

MP Rodriguez

Vito Pietanza

DC Cop

Dennis Depew

DC Cop

Howard Tyrone Ferguson

DC Cop

John Lacy

EMT

Diana Gettinger

FBI Dispatcher

Bryon Weiss

Robinson (uncredited)

Elena Nikitina Bick

Newscaster (uncredited)

Michael Papajohn

Gabriel's Henchman (uncredited)

Charles Grisham

Gabriel's Main Terrorist (uncredited)

Andy Dylan

Terrorist Blown Up by Fire Extinguisher (uncredited)

Peter Epstein

Terrorist Truck Driver (uncredited)

Chad Stahelski

Terrorist (uncredited)

Matt McColm

Terrorist (uncredited)

Clay Cullen

Assassin (uncredited)

Katherine Hoskins Mackey

FBI Agent (uncredited)

Timothy 'TJ' James Driscoll

SWAT Member with Walkie (uncredited)

David Haverty

Police Officer (uncredited)

Brian Smyj

Police Officer (uncredited)

Joe Bucaro III

Driver (uncredited)