Stephen Lang
Stephen Lang (born July 11, 1952) is an American actor and playwright. He started in theatre on Broadway but is well known for his film portrayals of Stonewall Jackson in Gods and Generals (2003), George Pickett in Gettysburg (1993), and his 2009 roles as Colonel Miles Quaritch in Avatar and as Texan lawman Charles Winstead in Public Enemies. Lang was the co-artistic director (along with Carlin Glynn and Lee Grant) of the famed Actor's Studio at its headquarters in New York City from 2004 to 2006. Description above from the Wikipedia article Stephen Lang (actor), licensed under CC-BY-SA, full list of contributors on Wikipedia.
Known for
Avatar: Fire and Ash 
Avatar 
Don't Breathe 
Avatar: The Way of Water 
Public Enemies 
Mortal Engines 
Don't Breathe 2 
Tombstone 
The Lost City 
The Men Who Stare at Goats 
Sisu: Road to Revenge 
Manhunter 
Terra Nova 
Braven 
Gettysburg 
The Nut Job 
D-Tox 
VFW 
The Hard Way 
Fire Down Below 
A Good Marriage 
In the Blood 
Project X 
The Seventh Day 
Death of a Salesman 
Exeter 
Guilty as Sin 
Shadow Conspiracy 
Pioneer 
Gridlocked 
Jarhead 2: Field of Fire 
Muzzle 
Another You 
Band of Robbers 
Tall Tale 
Old Man 
Band of the Hand 
Someday This Pain Will Be Useful to You 
The Monkey's Paw 
23 Blast 
The Independent 
Hellfire 
White Irish Drinkers 
Rogue Warfare 
Justice 
Isolation 
Beyond Valkyrie: Dawn of the 4th Reich 
Mid-Century 
Barron's Cove 
Death in Texas 
The Featherweight 
Rogue Warfare: The Hunt 
After the Storm 
My Love Affair with Marriage 
Rogue Warfare: Death of a Nation 
Avatar: The Deep Dive -- A Special Edition of 20/20 
The Gandhi Murder 
Beyond Glory 
Avenue of the Giants 
Capturing Avatar