Cheryl Osborne is a scientist developing a chemical method to increase intelligence. She was working for the OSI on an isolated facility on Dove Island. Her research was limited to testing on animals. Dr. Osborne had limited success with a serum named Psycactin-3. Although the serum did increase intelligence and strength, negative side effects included paranoia, dehydration, photophobia, and death. Dr. Osborne's companion is a chimpanzee named Billy. She found Billy in Tanzania.