King Andrias

King Andrias Leviathan is one of the main antagonists of the Disney Channel animated series Amphibia, serving as the main antagonist of Season 2 and the central antagonist of Season 3.

He is the monarch of Amphibia and lives in Newtopia Castle, Newtopia. While appearing to be the ruler of Amphibia, in reality, he is actually a minion to a powerful entity known as the Core.

Andrias sought to use the Calamity Box to conquer other worlds just as his ancestors did long ago (presume to be more than 1000 years ago). To accomplish this, Andrias took up the appearance of a benevolent ruler and ally to the human girl Anne Boonchuy to get the music box, only to drop the façade once he got the box and initiated plans to invade Earth as his first world conquest. After enduring a significant defeat with Anne and her subsequent escape, Andrias jumpstarts production of his army which begins a tyranical rule across Newtopia as a dictator and all of Amphibia between "True Colors" and "Turning Point", industrializing the surrounding area around Newtopia at a rapid pace within weeks, turning that part of Amphibia into a heavily polluted dystopian wasteland as seen in "Olivia & Yunan". Meanwhile, Andrias concentrates his invasion efforts with Los Angeles, as well as the destruction of Anne, who becomes a major obstacle in his goals.

Personality
Initially, Andrias appeared to be a goofy, fun-loving monarch who dislikes following royalty mannerisms and etiquette that Lady Olivia follows and tries to make him act upon. Yet at times, he shows he has a serious and calm side to him as well.

He has taken a liking to many human customs and slang. Andrias has a strong affinity towards puzzles and games which was first evident when he gave Marcy a scavenger hunt with a hidden message.

In "True Colors", Andrias Leviathan revealed his true nature; a cruel megalomaniacal and tyranical dictator who believes that he alone like his ancestors should rule all worlds and showed no remorse for his deception going so far as to mock Marcy for trusting him so blindly. The most disturbing element of this is the fact that even when his true nature is revealed, Andrias continued to act in his cheerful, condescending demeanor. He has shown great ferocity in battle, even roaring at times. He is ruthless and cunning, able to manipulate both Anne and Marcy into charging the gems on the Calamity Box whilst keeping it a secret that the powers that were given to the 3 human girls would be removed. He also had no problem destroying a tower just to demonstrate his power without remorse, not even caring that there were people in it.

Much of his anger and resentment seems to come from feeling betrayed by those he trusted most, as such King Andrias has a bitter opinion on friendship, going so far as to drop Sprig out a window even when Anne gave into his demands as a way to teach the human girl a "lesson" about friendship, showing him to be a psychopath as he showed no empathy for his wicked actions. His thirst for power is so great he ordered his Frobots to strip Amphibia bare of its resources and force frog villagers to work in his factories showing Andrias has no genuine care for his subjects.

Although he shows himself to be quite a skillful tactician, as he makes it clear to the Cloak-Bot to dispose Anne and the Plantars discreetly on Earth to avoid attract unwanted attention from the girl about his upcoming invasion, he is impatient in terms of getting result, resulting him to "motivate" his Cloak-Bot to finish off Anne and the Plantar at any cost back on Earth, by activating the self-destruct sequence inside the Cloak-Bot. This eventually caused the Cloak-Bot to recklessly attack Anne and Plantars wide open in public, which causes the US government to aware of the existence of the Plantars and the Cloak-Bot, destroying his original intention of a discreet assassination. Furthermore, he also does not take losing very well, for after Anne bested him in a duel with her Calamity Box powers, Andrias became intent on eliminating the girl by any means necessary to get back at her, and later he destroyed the drone's remote and head sets with his sword in a tantrum when he failed to eliminate Anne once more.

Appearance
King Andrias is a giant newt with light blue skin and a lighter underbelly; he's so tall that Anne, Marcy, Sasha and his royal guards in full armor stand at only the height of his knees. Andrias is very stocky and muscular and has white hair with a full beard and crows feet. He wears a dark purple metal suit of armor that has an X shaped battle mark on the left abdomen over a lighter colored shirt with cuffs similar to a Victorian aristocrat. He wears a crown that has the Core's eye attached to his head and has pauldrons shaped like snail shells; the right pauldron has a smaller X shaped battle mark on it. He also wears a gold snake belt and a purple and yellow tunic.

Ancient times
1,000 years before the events of the show, Andrias ruled over Newtopia, which was once a much larger, more advanced metropolis. He and his ancestors used the Calamity Box to power their technology. King Andrias thinks highly of his ancestors and consider their legacy of conquest to be nothing short of magnificent; he wishes to follow in their footsteps of dimensional domination. However, one of Andrias' closest friends who's a red frog stole the box from under his watch, hid it on Earth and stopped Newtopia's years of conquest. Andrias waited patiently over the next millennium to get his hands on the box again so he could finish his ancestors' 'evil' work of invading and enslaving entire worlds. As more time went by, the Amphibia inhabitants forgot about Newtopia's old dark legacy.

Meeting Marcy
Centuries later, Anne Boonchuy, Sasha Waybright and Marcy Wu were transported to Amphibia by the music box. He manipulated and recruited Marcy to get the magic relic, where she worked up to the rank of Chief Ranger in Andrias' Newtopian Knight Guard. At some point, Marcy tells Andrias over a game of Flipwart that she purposely intended to use the box to go on adventures with Anne and Sasha forever.

Marcy and Anne Reunite
King Andrias stands inside the palace, watching Anne and Marcy from afar before heading over to a chess-like board surrounded by other pieces. He then declares that the pieces are beginning to fall into place as he positions a figure that looks like Anne next to another figure that looks like Marcy, before announcing that the game is about to begin.

Meeting the Plantars
Andrias sends a "puzzlegram" but rather than sending a direct message, the king scatters clues across the area, which when combined form the true message. "Bring Me The Plantars," the message said when decoded.

The king extends a warm welcome to Anne and the Plantars. He requests to see the music box, which the Plantars do not have with them but Anne has a photograph of. Even though Andrias notes that the gems are gray rather than colored, he agrees to assist Anne and Marcy in returning home. Marcy would need to do some archive research in order to do so. Meanwhile, Andrias gives the Plantars a gold credit card, which they can use to buy whatever they want in Newtopia.

The Calamity Box
After searching through every book in the royal archives, Andrias and Marcy discover a hidden passageway leading to a secret wing of the archives; they decide to go down there and continue their quest. Anne, the Plantars, and Marcy meet with Andrias, who shows them a book with details about the music box; the three gems on the box must be charged at three separate temples in order for the box to be reactivated, but the book only reveals the location of one of the temples. Then, when Marcy is watching Anne depart with the Plantars, Andrias approaches her with a threatening proposal.

Suspicious Secrets
At the end of "The First Temple," after learning that Marcy and her companions had completed their quest successfully, Andrias goes into an underground chamber to tell an enigmatic figure, who he refers to as "My Lord".

True Intentions
Sasha and Grime attempted to stage a coup when the human girls and their friends came with the charged music box; thankfully for Leviathan, their efforts were in fruitless owing to Anne and her pals. Anne subdued Sasha despite her warnings about what she had learned about the King of Amphibia. With Andrias out of the dungeon, he ordered the royal newt guard to collect up and imprison all of the city's toad rebels. Anne ultimately passes the box over to Andrias, who states that Newtopia was once a much larger metropolis, but that the box was taken when he lost his friends, and that no one remembers how Amphibia used to be after 1,000 years. He assures everyone that now that he has the music box back, he would restore Newtopia to its former glory: not as a city of knowledge, but as a feared invading empire. The box gives the castle the ability to rise up into the sky from the city, high enough for everyone in Wartwood to view it. The old factories were then signaled to be reactivated, and they began building robotic minions for the huge newt king, which soared to his palace in seconds. Andrias announced to Anne and the others that now that he had the music box back, he would reign over all planets from his floating castle, with Earth being the first world he would invade. When Anne and Sasha told the king that they would stop him, he decided to show his strength by destroying a toad tower with his castle's gigantic laser cannon. Marcy was perplexed when she told Andrias that this wasn't the plan they had discussed, only for Andrias to disclose that he had duped her. Andrias then decided to tell Anne and Sasha another secret: Marcy had deliberately got them stranded in Amphibia, startling them both. Marcy admits that she was aware of the Calamity Box's capabilities all along and that her parents were planning to move away and that she had hoped that the box would transport them to a world where all three human girls would always be together, before falling to her knees in tears of guilt while Leviathan ridiculed her for emptying her heart to him over Flipwart. This discovery hurts Anne, but she rallies her companions to battle Andrias and his freshly constructed Frog-bot army. During the conflict, both General Yunan and Lady Olivia defected from Andrias. Frobo is killed while defending Polly. When he tries to smash Polly, she sprouts a pair of legs and manages to avoid his fatal strike. She dashes to the box, but Leviathan grabs Sprig and threatens to throw him out the window unless the box is returned. Anne begs Andrias to put down Sprig after the group complies with his demand, but Andrias refuses and drops him anyways. To Andrias' surprise, Anne begins to glow blue, indicating that she is still connected to the Calamity Box's second gemstone; while he is distracted, Marcy flies on Joe Sparrow to save Sprig. After a tense battle, Anne loses control of her powers and passes out, demonstrating to Andrias that the human girl still lacks full control of her abilities. He musters enough strength to get up and walk up to Anne and the Planters, despite not being fully recovered. Marcy steals the box just as he is about to kill Anne and uses it to open a portal to Earth, where a reformed Sasha and Grime kept Andrias at bay and Anne the Planters and Frobo's head escaped through the portal. The portal closes as Andrias thrusts his flaming sword through Marcy.

Mad Dreams of Conquest
With the Calamity Box back in his possession, Andrias then prepares his plan to attack Earth, starting with the invasion of Anne's home state of California. He then sharply asks General Yunan and Lady Olivia if they are on his side, to which they nervously declare they are in allegiance with him out of fear, and he orders them to put Marcy's comatose body in a rejuvenation tank. As Sasha and Grime escape via Joe Sparrow, Andrias orders his Frog Robots to follow Sasha and Grime.

Andrias was getting ready for the invasion when he gave a silver Frobot equipped with a cloaking device a mission to eliminate Anne because of the threat she was to his plans (also to get the latest volume of Cynthia Coven that Marcy got him hooked on). He then looked to a comatose Marcy in a life support chamber, telling her that her role had just begun.

Andrias later contacts his robot and is displeased because it had not killed yet Anne (and the fact it got the wrong book, due the book he wanted was out of stock). Andrias is done waiting and has activated the robot’s built-in self destruct sequence, giving the robot one hour in which to complete his mission, or he explodes.

Olivia and General Yunan are called by King Andrias to speak with him. After witnessing him supposedly talking to no one, he instructs them to keep an eye on the workers (frogs) and terminate anyone who dares to resist. Afterwards, Olivia angrily denounces Andrias and wishes to get rid of him. Yunan agrees as well and they decide that the only person smart enough to defeat him is Marcy who is still in stasis from getting stabbed. With no other option, they resolve to rescue her. However, Andrias arrives and reveals that he has been watching them, via the eye on his crown. The entity, referred to as the Core, has also been watching them the entire time and has needed a host. Using the Moss Man, they have been able to bring Marcy back to life; her intelligence was an important trait that the Core needed. While Andrias begged to reconsider someone else, he ultimately gives Marcy to the Core as she is placed in a chair and given a helmet, allowing the entity to enter her body. The transference, unfortunately, works as the entity, now inside Marcy's body, menacingly greets Olivia and Yunan.

During winter, three newts present Andrias that the army was finished ahead of schedule and under budget, but he questions why are they dressed like, and they explain they are celebrating the Earth holiday Christmas from Marcy and give him a present of a remote-controlled moth and is immediately eager to use it despite it being untested. Days pass as he transports the drone to Earth before it eventually lands and invades a Santa Claus float in the parade to defeat Anne and the Plantars. However, he is defeated by Anne and Sprig launching the Christmas tree on their float to the Santa float, puncturing through the drone as it malfunctions. Enraged, he destroys the headset and the controller as and the three newts leave, but gets mocked by the Core, who calls him pathetic, as he assures nothing would stop his massive army, not even Anne and Earth.

The Core
Andrias refers to the Core as "My Lord" implying that the large multi-eyed creature is his master. After the Core became one with Marcy he decides to let his master explain the destiny it will lead Amphibia to.

Marcy Wu
Marcy was the first human that King Andrias met; he manipulated and recruited her to retrieve the music box. At first, Andrias had great confidence in Marcy, making her work directly with him, even allowing her to make changes in Newtopia. In "A Day at the Aquarium", he proposed to Marcy that, once the box was recharged, she should take it with her and help him use it to travel to other worlds so she could always enjoy adventures with her friends. In "True Colors", it is revealed that everything he proposed to Marcy was just a ploy so that she would take the recharged Box to him, he also decided to reveal to Anne, Sasha and the Plantars that Marcy knew much more than they thought; Andrias spitefully told them of Marcy's selfish action of stranding them in Amphibia on purpose to her friends. As he watched Marcy tried to justify her actions, saying she helped Anne form a friendship with Sprig and Sasha grow as a person, only for her friends old and new being disgusted with her actions, he mocked her for her naivety as she fell down in tears with remorse. Marcy tried to make amends by stealing the box back from Andrias and using it to help Anne, the Plantars and Frobo's head escape to Earth, but before she and Sasha can go through the portal as well, King Andrias drives his laser sword through Marcy. The giant newt king kept her on life support in a rejuvenation tank until she was ready to become a host for the Core. Andrias admits to her that he always have liked her and even didn't want her to be chosen to be the mysterious entity's host, but stood down when it was adamant on it. He attempted to have it consider an alternative host but the Core had spoken. Andrias looks away possibly out of shame or guilt as just as the Core proceeds to plug itself into Marcy’s new suit and possess her.

Lady Olivia
Although Olivia is visibly upset by Andrias' total disregard for etiquette, she remained very loyal to her king. However, after King Andrias reevaluated his sinister motivations, she defected from him.

Anne Boonchuy
When King Andrias met Anne and the Plantars, he behaved in a friendly and kind manner, to quickly gain their trust. He offered his help to help the girls return home, and Anne accepted without question, not knowing his hidden agenda. He told them how to recharge the Calamity Box while leaving out the part that in the process would sever the link between the gems and the human girls hoping it would break the prophecy. With Sasha and Grime incapacitated after their failed coup, Anne gives Andrias the box and he comes clean about his true purpose for having it. Newtopia was once a thriving city and he ruled it alongside great allies, but when he was betrayed by his closest friends and music box was stolen from him, the city lost its glory. With the box returned, he can finally bring Newtopia back to what it was, not a place of explorers but a city of conquerors. Anne was horrified that she helped a a megalomaniacal tyrant who was planning to invade earth. When Anne and Sasha said they would foil his plans the giant newt king showed of his might by destroying the north toad tower with his castle's giant laser cannon to strike fear into them then he revealed to them both that Marcy got them stranded in his world on purpose which caused a heartbreaking scene between the human girls much to his amusement. When he threatens Sprig's life in return for the box; after hear Anne say the young frog was her best friend he drops Sprig anyay to demonstrate that the more you love friends the more it hurts when they go. To Andrias shock Anne start to glow blue meaning she was still connected to the stone. After an intense battle, Anne powers down and passes out, showing Andrias that the human girl doesn't have full control over her powers yet as he chuckles with relief. Andrias while surprised by Anne still having "The Gift" and hadn't fully recovered from the fight, he concludes that he can't allow her to live but she managed to escape but not before causing more pain to Anne by stabbing her friend Marcy with his laser sword. Seeing her as the only obstacle to his quest to conquer the earth he sent Cloak-Bot to eliminate her but the silver Frobot failed.

Name and basis
His name is a reference to the of the real-life giant salamander, .

His surname, Leviathan, is a reference to the often depicted as a humongous whale or serpent.

On Reddit, series creator Matt Braly stated Andrias is inspired by King Vendrick from .

Voice
King Andrias is voiced by Keith David.