Daniel von Bargen, who played Mr. Kruger, George Costanza’s clueless, slacker boss on “Seinfeld,” died over the weekend after suffering a long illness, WLWT, an NBC affiliate in his native Cincinnati, reported Tuesday. He was 64.

The actor, whose credits also included “O Brother, Where Art Thou” and “Super Troopers,” also had a recurring role on the sitcom “Malcolm in the Middle,” as Commandant Spangler. The 2009 comedy “London Betty” is von Bargen’s last listed credit on iMDB.com.

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In 2012, von Bargen made news for shooting himself in the head. In a harrowing 911 call, the actor told the operator that he shot himself “in the temple.” Von Bargen added that he’s diabetic and that doctors were “supposed to amputate a few toes,” but that he didn’t want to go to the hospital.

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A private memorial service will be held for the actor.