Methuselah メトシェラ

An ancient protector and sometimes attacker, Methuselah could travel in relative obscurity thanks to its physical appearance. This included posing as mountain ranges and other natural terrains. This was not limited to land either, as the creature was spotted near Canada where it was adrift and being mistaken for an island. It eventually migrated east where it made a home in Munich, Germany. This is where MONARCH built Outpost 67, to monitor the living creature.

With the war between Godzilla and King Ghidorah coming to an unexpected end thanks to the United States military's Oxygen Destroyer, the three headed monster used the opportunity to seize the throne and claim the position of Alpha among all the Titans of Earth. Letting out an unearthly cry that was heard across the globe, King Ghidorah summoned the massive beasts from their slumber.

One of these beasts awoken was Titanus Methuselah, who broke free from MONARCH Outpost 67. Under the false king's orders, the enormous, mountain-like creature made its way into and attacked the Bavaria's capital city. After the Titan's rampage went on for several hours, the ORCA - a device capable of simulating the audio signature of an Alpha Titan - was used to bring the global assault to a sudden end. Sensing that the current Alpha was in need of assistance, Methuselah began to make its way towards Boston as King Ghidorah once again engaged Godzilla in battle. By the time Methuselah arrived, however, Godzilla had already emerged the victor, slaying the three headed monster and assuming his rightful place as the new Alpha. Methuselah acknowledged Godzilla's new position and bowed to the King of the Monsters.

Some time after the events in Boston, as Godzilla sought a place to rest after his duties as Alpha left him weary, he found a place that allowed him to sense and communicate with all his fellow monsters around the globe. Knowing that the world could not support so many active Titans all at once, Godzilla ordered them back to their places of rest to give the planet a moment of reprieve.

• In an interview, director Michael Dougherty described Methuselah as "a hybrid monster that is part animal, plant, and rock."
• In Godzilla: King of the Monsters - The Official Movie Novelization, a character recalls a German legend involving Methuselah, in which the Titan destroyed a village and fell asleep upon its remains, giving the land a new mountain.
• Legendary Tweeted a bio of Methuselah during the MonsterVerse WatchAlong event. This revealed the height of the monster, 322 feet (98 meters), and that it previously lived in Canada as an island.