Milo Thatch is the main protagonist of Atlantis: The Lost Empire. He was a former janitor who dreamed about going to the city of Atlantis ever since his grandfather told him stories about it. He gets this chance with a group of explorers and then after saving it, becomes king by marrying Princess Kida. He has brown hair, glasses, a white shirt, a yellow vest with a red bowtie, blue pants and brown shoes; he is 'voiced' by Michael J. Fox
In 1914, Milo James Thatch is working as a janitor at the Smithsonian Institute in Washington, D.C. He is preparing for a presentation he has scheduled with the board of directors to seek funding to locate a book called the Shepherd's Journal in Iceland, believing it will lead them to Atlantis. Shortly after four o'clock, he receives notice that the meeting had to been moved to three-thirty. He then immediately receives another notice that the matter is closed due to his supposed no-show.
Angered by the deceit, he chases after the board members and manages to catch his boss Fenton Harcourt. Harcourt lays it thick that the museum only funds expeditions based on fact and not folklore, also belittling Milo's skills by saying that he is needed to tend to the boiler during winter. Milo attempts to hand over his letter of resignation, but Harcourt adds that no other institute would fund his expedition and he would throw his career away just like his grandfather.
A disheartened Milo returns home to find Helga Sinclair waiting to bring him to her employer, discovered to be a friend of Milo's grandfather in Preston Whitmore. Whitmore presents a parcel from Milo's grandfather that turns out to be the Shepherd's Journal. After a test by Whitmore on Milo's commitment to finding Atlantis, he reveals that the expedition is all set and ready to go. All that's left if for Milo to fill in for his grandfather to translate the directions from the book.
Milo has difficulty getting along with the others of the expedition, some even pulling pranks on him. In the end, they finally let him in during a rest stop. They manage to get him to stop reading the book for a moment, even though there appears to be a page missing. Milo and some of the others begin to open up about themselves. In the middle of the night, Milo awakens to use the restroom. He accidentally points his flashlight at a lamp housing fireflies that attack. The expedition is dropped into a cavern with Milo seemingly separated from everyone else.
When Milo comes to, he finds himself surrounded by strange figures. Upon noticing a scar on his shoulder, one of the figures removes its mask, revealing itself to be a human woman. Milo watches in shock as the woman uses a crystal to completely heal his scar. The figures make off with Milo following until he finds himself looking at Atlantis, alive and thriving. The figures return and he recognizes them as Atlanteans, able to communicate with them until it is discovered that they can speak other languages since they root back to Atlantean.
Though the meeting with the Atlantean King Kashekim Nedakh does not go so smoothly, the woman Milo met, revealed to be Princess Kidagakash Nedakh, leads him on a tour of the city while they get to know one another. Milo's interest in looking for the power source is sidetracked when he discovers that no one in the city can read the Atlantean language or even remember much of their past culture. Kida leads him on a swim where numerous writings are found and Milo begins to understand the true nature of the power source known as the Heart of Atlantis, as it is responsible for keeping the city alive.
Upon surfacing, Milo learns of Lyle Rourke's true intentions, having been the one who stole the missing page from the book and leading the rest of the expedition to find the crystal and sell it on the black market. Milo does not join them, but is forced to cooperate when Rourke has a gun aimed at Kida. Milo translates the page that the crystal is hidden in the King's Chamber, but does not understand the riddle. Rourke figures it out and forces Milo, along with Helga forcing Kida, to descend into the Crystal Chamber to recover it. Milo and Rourke argue about how to bring the crystal down until Kida is called upon by the crystal and they bond.
As Rourke and the expedition prepare to leave with the Heart of Atlantis, Milo makes one last plea to them to reconsider their actions as it would kill the Atlanteans. Rourke punches him, but the majority of the key members of the expedition end up siding with Milo. Milo learns from the dying king that he must also save Kida, for if she remains bonded to the crystal for too long she will be lost. After a pep talk from Joshua Sweet, Milo leads the others in using Ketaks to stop Rourke.
During the battle, Milo and Vinny Santorini act as decoys while Sweet and Audrey Ramirezattempt to free the container holding Kida and the Heart of Atlantis. When Rourke and Helga force them to retreat, Milo crashes his stone fish into the Gyro-Evac and causes it to descend, although Rourke gets it back going by tossing off everything else including Helga. As Rourke and Milo fight, Helga destroys the main balloon using a flare gun, causing Rourke to become enraged. Rourke attacks with an axe, smashing a glass cover. Milo notices energy from the crystal seeping into the glass shards and uses it to cut Rourke, turning him into a crystal. A chance swing by Milo causes Rourke to shatter against the moving propellers.
Though Milo and the container avoid the Gyro-Evac crashing upon them, it does result in the volcano awakening. Milo and the others manage to get the Heart of Atlantis back to the city in time to save it and Kida is freed from the crystal. Milo chooses to stay behind to help the Atlanteans rediscover their lost culture and has also fallen in love with Kida. He slips a package to be given to Whitmore on the surface, thanking him for his belief in the Thatches. Now King of Atlantis, Milo constructs the stone effigy of Kida's father to join the other stone effigies of the past kings that orbit the Heart of Atlantis now hovering over the restored city.
MCF Stories Edit
Prior to the MCF stories, he is revealed to be Skyla's biological father. Although his wife wasn't part of the original MCF, they still know them anyways as to their daughter being part of the current MCF team.
- MCF: Journey to Atlantis(Debut)
- Milo is the first and so far only Disney Hero to be a nerdy guy.
- Milo is the first Disney hero to wear spectacles, followed by Cornelius "Lewis" Robinson from Meet the Robinsons.
- Milo is the second adult type Disney male to be rather naturally skinny in physique, with Emperor Kuzco being the first. Arthurfrom The Sword in the Stone and Mowgli from The Jungle Book are also naturally skinny in physique, but are however only kids.
- According to the 2-disc DVD, before falling in love and marrying Kida, Milo's first love interest was named Lisa McGrath.
- Milo's complaint about how much he does not like carrots after puking over the ship used to launch the Ulysses could be a reference to how his voice actor Michael J. Fox is actually allergic to carrots, the line was ad-libbed by Fox, it wasn't supposed to be in the original script.
- Milo's decision to remain in Atlantis at the end of the film was actually better for him since due to the fact that the film was set in 1914, when World War I was already taking place, it would be inevitable for every single man in the United States to be drafted into the war, something Milo was apparently against. Also, it's implied that Milo never liked living on the surface until the Atlantis expedition.
- Milo may have actually been based on various anime male leads whose who appeared in works which are similar to that ofAtlantis, like Pazu from Laputa: Castle in the Sky and Jean from Nadia: The Secret of Blue Water (whom Milo physically resembles). Milo also unintentionally resembles Daniel Jackson from the 1994 film Stargate and it's TV series Stargate: SG-1and Stargate: Atlantis , which Disney's Atlantis' logo even resembles (particularly the second "A" missing the middle bar).
- Milo removed his glasses at least seven times in the film: the first time when he hears from Fenton Harcourt that he is a janitor and not a professor, the second time when he threw himself onto Mr. Harcourt's car windshield, the second when he unwraps the Shepherd's Journal after Whitmore gives it to him, the third time when he pukes over the side of the Ulysses' launch ship, the fourth when Kida removes it from his face and plays with it causing her pupils and eyelids to appear on the lenses a la Dexter fromDexter's Laboratory, the fifth when he "has sand in his eyes" when Kida brings him to a high area for a wide view of the kingdom, and finally when Rourke punches his glasses off of his face before he and Helga escape with Kida (turned to crystal) and leaving him, Mole, Vinny, Audrey, Cookie, Mrs. Packard, (now revolting against Rourke, Dr. Sweet is left at King Nedakh's palace where he is unable to save the King from dying) and the Atlanteans for dead.
- Milo's fighting during his final confrontation with Rourke was based on Jackie Chan's.
- Milo's fate appears to be the complete opposite of Ariel's: while Ariel was born underwater but ended up staying on land with Eric, Milo was born on land but ended up staying underwater with Kida.
- Although he is not really a prince, Milo is the only Disney Prince to become a king, since he married Queen Kida.
- Milo is the eleventh King of Atlantis.
- In the MCF series, Milo gives Skyla the Sheppard's journal as a gift prior to her being revealed as a princess.
- It is also revealed that he is good friends with her adoptive father Newton Crosby.