Brian Posehn is an American actor, voice actor, musician, writer, and comedian. He voices Sour Cream in Steven Universe. He is also the voice of Axel in the Minecraft Story Mode video game series and Octus on Sym-Bionic Titan. He voiced Jim Kuback on the animated series Mission Hill and played Brian Spukowski on the Comedy Central sitcom The Sarah Silverman Program.
- He is known for his trademark deadpan voice.