Lockjaw is a fictional character in American comic books published by Marvel Comics. He is an Inhuman giant bulldog whose abilities include teleportation. He serves the Inhuman Royal Family as their escort and as a loyal protector. Since his first apparition, Lockjaw has been labelled as one of Marvel's most notable animals and one of the most powerful members of the Inhumans. Lockjaw made his live-action debut in the 2017 Marvel Cinematic Universe (MCU) television series Inhumans.