Wallter has the appearance of a tall, grey humanoid figure with a beige torso, dark gray legs, and a spherical head with a drawn-on smile. Unlike most other NPCs, Wallter has more than 6 body parts, as he has 10 extra joints. This implies he has the R15 rig. He also wears a blue scarf which wraps around his head with the end of the scarf extending out of the loop.