Ethnically Asian of Korean descent, Cheryl is one of the oldest Wanderers in existance (after Douglas Kreig and before Maddie). Standing at 5'5 and dyed blonde hair, she is the Wanderers' chief doctor/medic. She gained most of her medical knowledge by inhabiting the Black Jack fandom, learning from the miracle surgeon Dr Black Jack. After learning all she can, she returned to the Author's ranks as the chief medical officer, saving many of her comrades' lives and taking care of their health.
Although she may be a doctor, she is not all helpless; she is trained to be a combat medic. Her class of medic requires her to train with the military and have competence in a multitude of weapons.
After Insert Another Classic War Story Here, her status is unknown.