- " I was trapped in an elevator for two hours and I had to make the whole time. But I don't blame them. Because one time, I turned into a dog and they helped me. Thank you."
- ―Louis in Ghostbusters II (1989)
Louis has messy brown hair in the Sleepyhead's style. One of his faces shows him as possessed by Vinz Clortho, with red eyes, crooked glasses, and a confused expression. His other face shows him with an awkward grin, not possessed. He has another head with a worried expression and the chin strap for the Ghostbusters' laboratory helmet. His torso shows a light blue jacket with some dirt on it, and an orange shirt underneath. He has blank legs in dark brown.