Lockjaw is a character in American comic books published by Marvel Comics. Created by Stan Lee and Jack Kirby, the character first appeared in Fantastic Four #45 (December 1965). He is an Inhuman giant bulldog whose abilities include teleportation. He serves the Inhuman Royal Family as their escort and a loyal protector. Lockjaw has been described as one of Marvel's most notable and powerful animal heroes. Lockjaw made his live-action debut in the 2017 Marvel Cinematic Universe (MCU) television series Inhumans. Publication history He first appeared in Fantastic Four #45 (December 1965), and was created by Stan Lee and Jack Kirby. Fictional character biography Lockjaw was born on the island of Attilan (formerly in the Atlantic Ocean and eventually moved to the Moon). Many times he has brought Inhumans to Earth and back again. At times, his powers have been manipulated by evil forces, most usually by Maximus the Mad. Lockjaw and the Royal Family encountered Maximus' creation, the Trikon, and were driven from Attilan's Great Refuge in exile. Lockjaw first appeared as a member of the Inhumans when they attempted to retrieve Medusa from the outside world and take her back to Attilan. This led them into conflict with the Fantastic Four, the first humans they met, who were harboring Medusa after rescuing her from the villainous Frightful Four. Accordingly, Lockjaw is indirectly responsible for revealing the existence of Attilan to the outside world. They returned to Attilan and became trapped in Maximus' "negative zone" barrier around the Great Refuge. Lockjaw is able to escape and becomes separated from his city. He roams the country for some time, accidentally terrorizing the local citizens, until he meets up with Johnny Storm and Wyatt Wingfoot. He journeyed with the pair in their attempt to breach the "negative zone" barrier. Before long, the Inhumans were freed from the "negative zone" barrier, and Lockjaw transported Crystal to New York, and brought Triton from Attilan to rescue Mister Fantastic. Lockjaw was later compelled to return Crystal to Attilan by Maximus. With Crystal, Lockjaw was captured by Diablo. They later rescued the injured Quicksilver. Before long, Lockjaw attended the wedding of Quicksilver and Crystal. He also brought the Fantastic Four to Attilan to battle Thraxton. Further adventures At one point, Quicksilver and the Thing witnessed what appeared to be Lockjaw, apparently a sentient being once mutated by Terrigen Mists, speaking to them. This convinces Quicksilver