Bruce Willis
John McClane
Justin Long
Matthew 'Matt' Farrell
Timothy Olyphant
Thomas Gabriel
Cliff Curtis
Agent Bowman
Maggie Q
Mai Linh
Jonathan Sadowski
Trey
Mary Elizabeth Winstead
Lucy McClane
Kevin Smith
Warlock
Yorgo Constantine
Russo
Cyril Raffaelli
Rand
Andrew Friedman
Casper
Christina Chang
Agent Taylor
Zeljko Ivanek
Agent Molina
Sung Kang
Raj
Chris Palermo
Del
Jake McDorman
Jim
Matt O'Leary
Clay
Yancey Arias
Agent Johnson
Allen Maldonado
Goatee
Chris Ellis
Scalvino
Nadine Ellis
Teller
Tim Russ
Agent Chuck Summer
Rosemary Knower
Mrs. Kaludis
Gerald Downey
Hoover Agent
Jim Cantafio
Deli Owner
Regina McKee Redwing
Nearby Agent
Tony Colitti
Chief Hazmat Agent
Tim DeZarn
Police Sergeant
Kurt David Anderson
Miller
Ethan Flower
Trader
Nick Jaine
Phone Guy
Joe Gerety
Jack Parry
Edward James Gage
On Duty PP Operator
David Walrod
Deli Customer
Edoardo Costa
Emerson
John Reha
Slacker Kid
Rick Cramer
MP Rodriguez
Vito Pietanza
DC Cop
Dennis Depew
DC Cop
Howard Tyrone Ferguson
DC Cop
John Lacy
EMT
Diana Gettinger
FBI Dispatcher
Melissa Knowles
Freeway Reporter
Chad Stahelski
Terrorist (uncredited)
Michael Papajohn
Gabriel's Henchman (uncredited)
Clay Cullen
Assassin (uncredited)
Matt McColm
Terrorist (uncredited)