Yor Forger is one of three main characters of the Spy x Family series. She works as a clerk at Berlint City Hall, but is secretly a skilled assassin who acts under the codename Thorn Princess. Yor possesses impressive strength and endurance for her slim frame, capable of easily piercing the skull of a human with her weapons and destroying a pumpkin with the sheer thrust of her bare hand. She agrees in pretending to be Loid's wife and Anya's mother in order to serve as cover so she can continue with her assassin work. Yor is consistently bad at cooking and usually leaves the cooking to Loid.

Meme is a middle-aged man who lives in an abandoned building. Being an expert in apparitions field, he solves Koyomi and others' problems. Although he sometimes expects compensation, he does not require it always and seems to help those in need from good nature. Due to his vast knowledge of supernatural studies and general oddities, he serves as Araragi's informant during his stay in the city. Oshino is a graduate of Shinto studies in college, although he never pursued the career of being a Shinto priest. Despite that, he is perfectly capable to accomplish spiritual works of a Shinto priest, such as exorcising entities and solving paranormal mysteries. He occasionally wears a Priest's outfit, as seen with the session with Senjougahara and the heavy crab. Meme's other notable accessories include an earring on his right ear and a necklace, both consisting of an inverted cross.