Yusuke Kitagawa (喜多川 祐介, Kitagawa Yusuke) is a character that originates from Persona 5.
In Persona 5, Yusuke Kitagawa is the pupil of acclaimed Japanese artist Ichiryusai Madarame, the Phantom Thieves' second target. Yusuke is a passionate artist that began developing his craft at the age of three, at which point he had been orphaned and the artist had taken him in. Underneath Madarame's kind exterior however is a conniving con man who extorts his pupils and plagiarizes their work, a fact which, upon being confronted by the Phantom Thieves about it, Yusuke reflexively denies. In truth, Yusuke has long been aware of Madarame taking advantage of his students, for he is a victim of Madarame's crimes himself; however, he is unable to bring himself to believe that his caretaker for most of his life is such a terrible man. Yusuke himself is the last of Madarame's pupils, with several of his former pupils having their lives end up in shambles after resisting Madarame.
Upon entering Madarame's Palace with the Phantom Thieves, Yusuke winces in horror at the sight. Upon confronting Madarame's Shadow, Yusuke discovers that Madarame never truly loved him, and a piece of Madarame's art that Yusuke had admired for so long had in fact been a self portrait painted by his own mother, whom Madarame had left to die so he could steal her work. Enraged, Yusuke awakens his Persona, Goemon, becoming a Phantom Thief with the codename Fox, and helps the group steal the Treasure of his now former mentor. He designs a logo for the group, which is depicted on all the calling cards they send from then on.
His codename as a Phantom Thief is Fox.
As a background character
Yusuke Kitagawa appears in Mementos stage in his Fox costume.