Dr. Gross makes her first appearance in "Preboot." She creates hybrids of organisms, presumably her work is the opposite of extinction. Upon observing Susan's head implant, she seems intrigued, then surprised as she reads its serial number. After being restrained, Gross offers to tell Susan everything, but the giantess flees without listening. "Hide and Seek" revealed that she used be teacher for Kara (later Susan Strong) and other Seekers when the Seeker program was active.
Chronicles of Great New Empire[]
Dr. Gross creates soldiers for the empire. Hondao gave her a laboratory and assistants.She conducts ruthless experiments on people and other creatures.