Obata said that he did not receive advance notice regarding Matt, who had the character concept of "a young man who loves gaming and doesn't really care much about the world." Obata said that he remembered seeing the thumbnails and asking his editor "Who's this character?!" The thumbnails gave Matt a bowl haircut and goggles; Obata instead drew "what I liked." Obata added that he could "create Matt naturally" as he had a "he probably won't do much" mentality regarding characters introduced in the Near and Mello arc. His birthday is February 1, 1990.