O'Nall

"My time has come to burn! I invoke the ancient power that I may return!"

- The Omega's backwords message decoded.

O'Nall, more commonly known as "The Omega" or simply, "The Alien" is the main antagonist of The Expedition. He is voiced by BogleBlocks Pictures. Originally from an unknown planet, O'Nall lives stranded on Earth, only wanting to be left alone. He lived on the island the Night Slasher lived on the expedition team went to. After their arrival, O'Nall begins killing them, trying to get them to leave, but they retaliate, causing him to be hunted down by them. O'Nall commits suicide by sinking the island in a last ditch effort to kill the expedition team.

Early Life
O'Nall was born on an unknown, far away planet to a thriving race. It is known he had parents but not if he had any other family. Eventually, O'Nall grew old enough to learn how to harness his abilities, those that were native to his species.

Later Years
When O'Nall was still young, his homeward began to crumble because of its people and was destroyed shortly afterwards. O'Nall was the only successful escapee, and crash landed on earth in 1434. He met an Native American tribe leader named Houskataet, who showed him an island where he could live secluded for the rest of his life. O'Nall, now under the alias "The Omega" lived on the remote island for the next 560 years, creating a horizontal sinkhole where he could hibernate.

The Expedition
Mike and his team arrive at the island examining a crater (which was later revealed to be caused by the impact of The Omega's crash landing). He begins stalking them early on and on the first night, he kills Dr. Pepitone when he is outside. He begins hunting the team, trying to kill the rest of them. He tries drowning the river crew and kills Donna in a helicopter crash. In all the kills the team believes it is the Night Slasher.

Later in the day Doug, Rufus, and the Night Slasher discover the sinkhole, and when his back is turned, The Omega kills the Night Slasher back driving a sword through his stomach. The Omega scares Doug and Rufus away, and retreats back into the sinkhole. The next day, Mike, Tyreek, Doug, Rufus, and Luke investigate the sinkhole looking for him, but find nothing. Right when they get back to camp, The Omega attacks the team. The team discovers The Omega's weakness of fire, and he retreats soon after that.

The Omega begins to attack them in the Inner Island, almost drowning Doug, but is soon overpowered and interrogated by Mike, asking for Joan's location, but The Omega truthfully says he didn't do anything with her. He then causes an earthquake, which sends everyone but Mike into the trench below. Mike stays up with The Omega and they share their stories. Afterwards, Mike begins a fight with The Omega, in which the former is almost killed, but Tyreek saves him, only to be impaled by an exposed sword. Mike chases The Omega down who flees, and the former is soon accompanied by Samantha, Rufus, Doug, and Luke, who defeat him after an intense battle. The Omega attempts one more time at killing them all, by sinking the island, which would kill himself as well. However, Rufus stays behind to hold him off, and with no where to go, The Omega kills himself and Rufus, and the island is destroyed.

Personality and Appearance
The Omega first comes off as frightening and cruel, but his only desire is just to live away from people. He is very passive it people will grant him this. Otherwise, he is murderous and will kill ruthlessly to get people away from him. He is very skilled in his killing, using many of his homeward abilities to eliminate his threats. However, he seems to have a layer of sympathy and understanding towards the human kind, such as when he talks with Mike heartfelt and considers Houskataet and ally of his. It also appears that he can have some respect towards humans, as he tells Mike it pains for him to kill the latter. The Omega likes to hide in the trees and stalk his victims before he carries through with his plan.

The Omega has a body character that appears like a demon. He is all black and has horns at the top of his head. He has large teeth that stick out of his mouth and has purple, glowing eyes. He wears a torn cape with body armor over his shoulders. He also has a necklace of weird white balls that he wears around his neck. He also has very thick skin, as melee weapons do not appear to effect at all. He has a sturdy physique that allows him to move swiftly across trees and remain out of sight.

Powers and Abilities
Weapon Manifestation: The Omega could manifest weapons from the palms of his hands, usually obsidian swords. These swords were incredibly durable and sharp, enough that he could damage a helicopter blade without the sword sustaining even a scratch. The Omega would usually hurl these swords from long range and would be his main weapon to fight against Mike.

Enhanced Invulnerability: The Omega's skin appears to be so thick it can withstand machetes, a pickaxe, and even shotgun shells. The Omega states himself that if Mike tries to kill him with his machete, he'll be trying to kill him for a long time. He was even stabbed through the stomach with a machete, but seemed to be just fine directly after.

Teleportation: The Omega has the ability to be transported across a space and distance instantly. However he does not appear to use it often.

Longevity: The Omega has an incredibly long lifespan. He has lived for many centuries, and possibly could've lived for many thousands of years, because his race ages slower as they grow older.

Geo-kinesis: The Omega can shift the tectonic plates beneath the earth and cause earthquakes. The Omega caused one so strong he broke the island apart and sank it into the ocean.

Expert Combatant: The Omega is very skilled in fighting. He used his axe as his main weapon before it was lost in the river. He easily held his own against Mike and was a formidable opponent in the final fight.

Weakness
Fire: The only weakness of The Omega seemed to be fire. The extreme heat from fire and explosives can burn away the thick skin, inflicting great pain while also rendering him vulnerable to other weapons. He cried in agony from the Molotov and he seemed to be weakened a great bit from the flamethrower.

Trivia

 * O'Nall makes a "hissing" noise sometimes in the film. This noise usually indicates when he is about to attack.
 * O'Nall's voiced had similar characteristics to that of The Overlord's from the Ninjago TV Show. (Raspy, heavy breathing, deep, constant change in pitch.)
 * O'Nall's mini figure was from the 853866 Ninjago Blister Pack.
 * Coincidentally, the mini figure's name was Omega.
 * O'Nall's weapon conjuring ability was inspired by Hela from the MCU.
 * With O'Nall's death, his entire species is now extinct.
 * O'Nall's theme is the infamous Prowler Theme, composed by Daniel Pemberton for Spiderman: Into the Spiderverse