Satoshi Fukase (深瀬 智 Fukase Satoshi), known as just Fukase, in Roman characters, is the bassist and vocalist of the four-member Japanese band SEKAI NO OWARI (also known as End of the World), and one of its lyricists, composers, and arrangers. He is also the creator of the character brand BAD MOOD, and wrote the animated series featuring the characters. He will make his debut as an actor in the 2021 movie Character.