Dr. Dee, a faculty member and researcher at Endor College, merges scientific rigor with arcane experimentation, specializing in the fusion of empirical methods and spellcraft. His studies center on the fly-by-night flower, a rare botanical specimen that temporarily bestows magical abilities. Partnering with Madam Mumblechook, the college’s headmistress, he pursues clandestine trials to transmute humans and animals into witches and warlocks, dismissing ethical boundaries in favor of radical transformation.

His experiments yield hybrid creatures marked by grotesque, unstable physiologies. After capturing Peter, a young boy, Dr. Dee subjects him to repeated transmutation rituals, framing the agonizing process as a "rebirth" essential to unlocking latent warlock potential. He targets children exclusively, convinced their innocence optimizes absorption of the flower’s magic—a hypothesis fueling his relentless, albeit futile, trials.

Approaching sorcery as a branch of chemistry, he wields electricity as a mystical force and distills potions through systematic inquiry. Historical accounts note that decades earlier, his protégé Charlotte sabotaged his work, stealing fly-by-night seeds and fleeing the college. Undeterred by past failures or present opposition—including Mary’s efforts to undo his transformations—he clings to a warped conviction that progress justifies irreversible methods.

His alliance with Madam Mumblechook thrives on calculated ambition rather than ideological kinship, their collaboration sustaining his precarious academic standing as his reputation corrodes. Once a respected scholar, Dr. Dee’s escalating recklessness mirrors his mounting obsession, etching a trajectory from innovation to moral decay anchored solely to his role as Endor College’s antagonist.