 Breaking convention with other comic book archetypes of the time, they would squabble and hold grudges both deep and petty and eschewed anonymity or secret identities in favor of celebrity status.The team is also well known for its recurring encounters with characters such as the villainous monarch Doctor Doom, the planet-devouring Galactus, the Kree Empire's ruthless and tyrannical enforcer Ronan the Accuser, Annihilus, ruler of the Negative Zone, the sea-dwelling prince Namor, the spacefaring Silver Surfer, and the Skrull warrior Kl'rt.The Fantastic Four have been adapted into other media, including four animated series and four live-action films.