Walter "Walt" Kowalski is the main character of the film Gran Torino, portrayed by Clint Eastwood.
Walt is a Polish-American former auto worker who becomes embroiled in a conflict involving a Hmong family and a gang. Walt had served in the Korean War and had killed a Korean boy who had been trying to surrender to him; the experiences haunts him for the rest of his life. He is a retiree who formerly worked at a Ford automobile plant, and he owns a Gran Torino he had personally built. He also owns an M1 Garand rifle and an M1911A1 pistol, both of which he kept from the Korean War. Walt's wife, Dorothy Kowalski, is dead by the beginning of the film.
Nick Schenk, the writer of the script of the film, said "Walt is like a lot of shop teachers and coaches that you have in school. He's the kind of guy who's just waiting for you to screw up so he can roll his eyes at you." Eastwood has said that the car is "sort of a symbol of his days with the Ford plant" and that the gun "is sort of a symbol of his days in the military. … He's clinging to the memory of the war. You'll find out when you see it, some of (the memories) are not as pleasant as others. That helps make him even tougher to get along with."
Anthony Breznican of the USA Today said that even though Clint Eastwood had served in the Korean War (in a non-combat role) he "has little in common with Kowalski." Jenkins explained that Walt is "a man of action who's offended by the Catholic church's dogmatic insistence that it understands mortality better than a grizzled vet who's seen comrades die." Jenkins added that Walt also "learned firsthand that self-sacrifice is not transcendent" in a similar manner to John Bradley, the protagonist of Flags of Our Fathers, and Tadamichi Kuribayashi, the protagonist of Letters from Iwo Jima. Jenkins explained that Walt ultimately "assumes a Christ-like posture, both to save his new friends and to put Janovich in his place." John Serba of The Grand Rapids Press argues that Eastwood in Gran Torino "finds his focus on" Walt and "When Walt wields his weapons with righteous fury, Eastwood the actor shows us a damaged man suffering a horrible wartime flashback, without stating it outright." Serba argues that the "suggestiveness makes it easier to overlook the inexperience of his supporting cast and the occasionally overstated, transparent dialogue." Biancolli said that Eastwood, as Walt, "just keeps doing his Dirty Harry glare, whipping out guns real and imaginary. But it’s hard not to see him as Mr. Wilson [George Everett Wilson] — Dennis the Menace’s crotchety neighbor. Skinnier, hairier, no mustache."