Eddie Brock is a central character in the Spider-Man universe, known for his complex relationship with both Spider-Man and the alien symbiote. Originally a journalist, Eddie becomes Anti-Venom after being cured of his Venom symbiote and subsequently gaining new powers. As Anti-Venom, he possesses the ability to heal others and neutralize other symbiotes, making him both an adversary and an occasional ally to Spider-Man, depending on the circumstances.