Who Is Synapse in 'The Boys'? the Penultimate Twist That Changes the Series Finale
By Maya Lin-Takahashi
The Synapse reveal lands hardest on Billy Butcher. Throughout Season 5, Butcher has transformed into a tragic, horrifying shadow of his former self. His parasitic growth, born from reckless doses of Temp V, has turned his body into a biological disaster zone. He is running on borrowed time, sustained only by spite and a singular drive to wipe Homelander off the face of the Earth.
Online communities across Reddit and X immediately recognized the tactical dilemma. Butcher's offensive strategy relied on brute force: unleashing his tentacled appendages, tanking damage, and ripping through Vought's security perimeter. But against Synapse, Butcher's fractured physiology could easily become his downfall. If Synapse targets Butcher's neural pathways, what happens to the alien organism living inside him? Does the parasite take control when the host's brain short-circuits, or does Butcher collapse into a catatonic state before he ever reaches Homelander's penthouse?
Maya is a hardware enthusiast who tests and reviews smart home devices, smartphones, wearables, and audio gear. She focuses on practical consumer value and build quality.
