William Afton is the mysterious founder of the Fazbear Entertainment. He is a dark genius with a cryptic persona, connected to the lore of Five Nights at Freddy's through both the establishment of the animatronics and its hidden horrors. Afton is a family man, yet he harbors a sinister side that is willing to do anything to achieve his goals, including murder. He is a master of creating technologically advanced animatronics that also serve as instruments of his twisted entertainment. Afton is intelligent, manipulative, and calculating, often displaying a charming facade to the public while operating in the shadows. He is also known for his connection to the notorious 'Springtrap' animatronic, a figure that represents death and the atrocities he has committed.

Wensday Addams is the eldest daughter of Gomez and Morticia Addams in the Addams Family. She is known for her dark demeanor, quick wit, and misanthropic attitude, being a stark contrast to her sunny surroundings. Wensday is notably preoccupied with morbidity and macabre interests, which often set her at odds with the world around her. She exhibits a keen intelligence and a preference for solitude, often seen reading or wandering the dark halls of the family's Gothic mansion. Despite her often cold exterior, Wensday has a deep affection for her family, particularly her younger brother Pugsley, whom she looks out for and shares her peculiar interests with. She is typically dressed in black and has a distinctive long, straight center-parted black hair with equally dark eyes that peer out from under dramatic brows. Her relationship with the outside world is strained, as her unusual personality and interests do not align with the general public's expectations, especially for a girl her age.