Mystery Man

"Well, I guess my work was for nothing after all." The Mystery Man, also known as "W.D. Gaster", is a strange monster that can be met behind the gray door in Waterfall. He is assumed to be the former royal scientist of the Underground, but his work was cut short after he fell into the CORE, the power supply of the Underground. He is usually formal and reserved, but may have some manic outbursts due to being stuck the the void for so long without human contact. Many people think he is a skeleton, but in his current state, it's difficult to tell. He also gets flustered very easily, although he's usually formal and calm. (That's all, have fun!)