Mori Chack (森チャック Mori Chakku, born on March 23, 1973) is the artist name of a Japanese graphic designer, who was born in Sakai, Osaka, Japan. He is famous for his Chax product line, and especially the character Gloomy Bear, a 2 m tall, violent, pink bear that eats humans. The design is an antithesis to the excessively cute products produced by Disney, Sanrio's Hello Kitty, and other companies. Mori Chack believes that humans and animals are incompatible, and an animal is wild by nature. This is expressed most pronouncedly by the Gloomy Bear, which is often shown blood stained and attacking humans. Gloomy Bear is also available in different colors with slightly different designs. There is also a Space Invaders 30th anniversary gloomy bear.