Brian Posehn is an American actor, voice actor, comedian, and musician from Sacramento, California. He is known for his role in Just Shoot Me, as well as his Heavy Metal album "Live In: Nerd Rage." He has produced metal-cred-posturing lampooning singles "Metal by Numbers" ("metal in name only" bands) and "More Metal Than You" ("more hardcore than thou" fans). In the Adventure Time episode "Business Time," Posehn voiced the leader of the Business Men. He also voiced Octus in the Cartoon Network show Sym-Bionic Titan, Jim Kuback on Mission Hill, and Sour Cream in Steven Universe.