Henry is a Klay man who appears in the original Henry's Shotgun episode, as well as appearing in the later episode of the same name. Dr. Bob rebuilds him and Henry reappears in Klay World: All Gone, where his head has stitches from his last injury where he was shot in the head.
He finds a minigun, killing mutliple Klay men and No Arms guy. Dr. Bob then shoots a rocket at him, throwing him off the table, but not killing him. He then gets back up and fires a rocket back at the table making it fall on its side, leaving Dr. Bob and Chip to hang there. Henry then goes to fire another rocket, but before he fires, Rick pits his finger in the gun, causing the gun to explode, killing Henry and Rick.