Gariwald VIII (full name Gariwald the Construction Chap the Eighth, or simply known as Gariwald) is a non-meetable character in CP3D. He is Gary the Gadget Guy's great uncle, and also invented the Ghostamatron.
He first appeared in the Halloween Party 2021, where his mansion mysteriously appeared in the Forest. He could be seen in the Ghost Lab, after the player has collected the Ghost Goggles. He talks with the player about him having turned himself into a ghost indefinitely with the machine, and invites the player to try the Ghostamatron for themselves to turn them into a ghost, having made some improvements to the machine over time.