Doctor Tōyama, whose name appears in some sources as Dr. Tomaya or Dr. Toyama, is a supporting character in the 1987 anime OVA Body Jack - Tanoshii Yutai Ridatsu. He is portrayed as a quintessential mad scientist figure, complete with a hulking assistant who resembles Frankenstein's monster. His primary role in the story is that of an instigator, as he possesses a strange and remarkable invention capable of inducing an out-of-body experience in a living person. Driven by a motivation that is left largely ambiguous, Doctor Tōyama approaches the story's protagonist, a high school boy named Asagaya Takaya, and offers him the use of this machine. The doctor permits the young man to use the device to separate his spirit from his own body and then "slip into" the body of a beautiful girl he desires, Ikenoue Komaba. This act serves as the central catalyst for the OVA's plot, as Tōyama allows Takaya to explore this experience. The narrative does not provide significant detail regarding Doctor Tōyama's personal background, any personal development he undergoes, or his relationships with other characters beyond this transactional interaction and his unnamed assistant. His notable ability is the creation of the out-of-body machine, a piece of technology that functions as the core mechanism enabling the story's fantastical premise.