Every episode has at least 4 experts in each episode, at least 2 per warrior. Most ancient experts are stunt men who have recently appeared in famous Hollywood movies. Some of the modern warrior experts are professional gunmen, former special ops, relatives of the modern warriors, or the actual warrior that they represent on the show (i.e. Spetsnaz soldiers as Spetsnaz experts or SWAT officers as SWAT experts).
Apache
Alan Tafoya
Snake Blocker
Snake Blocker is a US Army Combat Instructor and champion knife fighter. He tested weapons of the Apache. He tested the Tomahawk, the Knife, and the War Club. [3]
Gladiator
Chris Torres
Steven Dietrich
Chuck Liddell
Viking
Casey Hendershot
Matt Nelson
Samurai
Brett Chan
Tetsuro Shigematsu
Spartan
Jeremy Dunn
Barry Jacobsen
Ninja
Lou Klein
Michael Lehr
Pirate
Michael Triplett
David Hernandez
Knight
David Coretti
Josh Paugh
Yakuza
Zero Kazama
David Kono
Mafia
Joe Ferrante
Thomas Bonnano
Green Beret
Matt Anderson
Sgt. George Gomez
Spetsnaz
Sonny Puzikas
Maxim Franz
Shaolin Monk
Eric Chen
Wang Wei
Alfred Hsing
Māori Warrior
Seamus Fitzgerald
Jared Wihongi
Sala Baker
William Wallace
Kieron Elliott
Anthony De Longis
- (On Shaka Zulu's spit of poison) "There's just one problem I see..." (holding claymore out in front of him) "How far can you spit chief?"
Shaka Zulu
Earl White
- (war cry) "ZULU!"
Jason Bartley
- (war cry) "ZULU!"
IRA
Skoti Collins
Peter Crowe
Taliban
Fahim Fazli
Alex Sami
SWAT
Jon Darrah
Steve Gordon
GSG 9
Michael Nagel
Damien Puckler
Attila the Hun
Sean Pennington
Robert Borsos
Alexander the Great
Kendall Wells
Peter van Rossum
Rashad Evans
- "Alexander is the truth!"
Jesse James
Joey Dillon
J. W. Wiseman
Al Capone
Meyer Lanksy II
Johnny Lew Fratto
- "Who the f*** even needs to hit anybody with a pistol anyways? You know it's a f***ing pistol, use it as a pistol!"
Aztec Jaguar
David Lavera
Eder Saul Lopez
Zande Warrior
Coley Mustafa Speaks
Gordon Jock
Nazi Waffen-SS
Silvio Wolf Busch
Robert Wilhelm-McCain
Viet Cong
Tuan Nguyen
Danny Boyer
Roman Centurion
Terence Rotolo
Matt Lasky
Rajput Warrior
Gugan Deep Singh
Bhajneet Singh
Sukhwinder Singh
Somali Pirate
Abdi Ali
Haji Ukajh
Medellín Cartel
Michael Corleone Blanco
Kenny "Kenji" Gallo
Kenji Gallo was a porn producer and cocaine trafficer associate of the Los Angeles crime family and the New York City's Colombo crime family, both heavily afficiated with the Medellin Cartel durring their reign. The FBI allowed him to spy on the crime families. Today he is under witness protection but publicly talked about his life as a rat in writing blogs, books and tv shows. Even today he testifies in court against his former gangsters, who still threaten his life today.