Rose Psychic
Rose Psychic was a childhood friend of Doctor Occult and his assistant in his private detective firm, the Trenchcoat Brigade. After Dr. Occult died during a battle, Rose had bonded their souls together, resulting in them sharing one body.
In the DC Rebirth reboot, Rose is also a investigator of London's specialized mystical police, the Other Side. She serves as the mentor of Tim Hunter, a young boy with potential to be a powerful sorcerer.
Rose Psychic was created by Joe Shuster and Jerry Siegel, first appearing in New Fun Comics #6 (1935).