Toxin is a fictional character appearing in American comic books published by Marvel Comics. He has been depicted as a superhero and at times a supervillain. The character is the offspring of Carnage, the third major symbiote in the Marvel Universe, the ninth known to have appeared in the comics outside of the Planet of the Symbiotes storyline, and the first symbiote that Spider-Man considers an ally, despite several temporary alliances with Venom in the past. The Toxin symbiote's various hosts are former NYPD police officer Patrick Mulligan, Eddie Brock, and teenager Bren Waters. Stephen Graham portrayed Detective Mulligan in the Sony's Spider-Man Universe film Venom: Let There Be Carnage. Fictional character biography Carnage produced an offspring: a third symbiote. Carnage felt only dislike and hatred towards this new spawn, even before giving "birth" to it, both fearing that it could become much stronger, and being generally disgusted at the thought of giving birth. At the same time, Venom became aware that Carnage was "pregnant" and sought out Carnage to talk about this new symbiote. Carnage had resolved to kill this spawn as soon as it was born. Venom was doing the best to protect the new symbiote, with the intention of raising it to become a new partner. Venom was also concerned that, as the 1,000th symbiote of their line, the new symbiote could potentially become psychotic and violent because of genetic breakdown. Patrick Mulligan Patrick Mulligan was one of New York City's finest cops, yet troubled with various personal problems. His stressful job, along with the strain of his new family (his wife Gina was pregnant with their first son Edward) were taking their toll. One night while on duty, he came across the site where Carnage was giving birth to the new symbiote. Carnage, needing a host to hide the symbiote to keep it from Venom, bonded it to Mulligan. Carnage resolved to kill both Mulligan and the symbiote since they were not yet strong enough to manifest a super-powered costume like the Venom and Carnage symbiotes. Venom still hoped to use this new symbiote as a partner, and fought Carnage to a standstill to protect Mulligan and the symbiote, whom he christened Toxin, after himself. At first, Mulligan did not realize what had happened to him. Before long, the Toxin symbiote had matured enough to gain both conscious thought and the strength to form a symbiote