In an era saturated with dystopian narratives, Common Side Effects (Adult Swim, 2025) distinguishes itself through its quiet, fungal apocalypse. Created by Steve Hely and produced by Joe Bennett (co-creator of Scavengers Reign ), the series trades nuclear wastelands for the mycelial networks beneath a hyper-capitalist, surveillance-saturated present. The central McGuffin—a blue, bioluminescent mushroom capable of curing any ailment, from a broken leg to end-stage brain cancer—is not merely a plot device but a philosophical pressure test.
The primary conflict of Common Side Effects is not between good and evil, but between the commons and commodity . Marshall Cuso (voiced by Dave King) represents the pre-capitalist healer: he finds the mushroom in the wild, shares it freely, and asks for nothing in return. His adversary is not a cackling villain but the systemic inertia of the pharmaceutical industry, embodied by the duplicitous CEO of RegenTek, Frances Appleton (voiced by Emily Pendergast). Common Side Effects
The "common side effect" of living in a mycelial world is the loss of certainty. We do not know who will be healed or when. We do not know if the mushroom is good. The series’ final shot is of a blue fungus sprouting from a crack in a RegenTek parking lot, next to a puddle of oil. It is beautiful, toxic, and alive. In an era saturated with dystopian narratives, Common
Frances is the show’s tragic Hegelian. She recognizes the mushroom’s potential to end suffering but believes this can only be achieved through patent law, FDA approval, and shareholder appeasement. Her famous line, “A cure is worthless if it isn’t scalable,” encapsulates the series’ critique of biopolitics. The narrative demonstrates that the moment the mushroom enters a lab, its essence is corrupted. RegenTek’s attempts to synthesize the compound fail because the mushroom’s power is not chemical but relational ; it responds to the mycelial network’s holistic consciousness, a property erased by reductionist science. The primary conflict of Common Side Effects is