Shigeo Kageyama (影山 茂夫, Kageyama Shigeo), nicknamed "Mob" (モブ, Mobu) and "White T-Poison", is the main protagonist of the Mob Psycho 100 series. He is a third-year student at Salt Middle School and the vice-president of the Body Improvement Club who is also a former assistant and disciple of Arataka Reigen.