Infinite is a major antagonist in Sonic the Hedgehog, first appearing in the game Sonic Forces. He is a mysterious mercenary and the leader of the Phantom Ruby-powered forces serving Dr. Eggman. Once a member of the Jackal Squad, Infinite becomes obsessed with power after obtaining the Phantom Ruby and adopts a masked, intimidating persona. He plays the role of Eggman’s enforcer and one of Sonic’s most dangerous enemies, using illusion-based abilities and combat skills to manipulate reality and overwhelm opponents.