You have it wrong.
Jeffrey Combs is the light bulb, true, but he's also the person changing the light bulb.
It's so weird. It's like they build houses now under the assumption that LEDs have an infinite lifespan.
Like light bulbs, Weyouns come in 4, 8, or 10 packs, save more by buying in bulk and store the rest in your utility closet until needed.