Dexter O'Reilly

**Dexter O'Rellly**, a young gifted genius who is the grandson of the founder of DexLabs, grandpa Dexter. Being raised by his grandfather, Dexter prides his high intellect as the legacy of his grandfather to one day take over the family business.

## Appearance

Dexter is a very short young boy who has curly red hair that was passed down to him from his late mother. He wears a pair of glasses that appear semi-circular at normal times, but when he widens his eyes, the tops of them round out. He wears a little white lab coat with black buttons on it. He also wears purple gloves, and a pair of black rubber zipper boots. Occasionally he may or may not wear a pair of black pants that match his boots. He speaks with a Russian accent despite the rest of his family not having any accents.

In the possible future, Dexter became tall and muscular build, growing a red beard with a pair of goggles, wearing a black suit with a lab coat with torn sleeves.

## Personality

Dexter is an extremely intelligent boy (a self described "Boy Genius") who has been creating fantastic inventions since he was a baby. He considers Albert Einstein to be his greatest influence. He is normally in conflict with his sweet sister Dee Dee. Dexter, though highly intelligent, often fails at what he has set out to do when he becomes overexcited and makes careless choices. Dexter speaks with a Russian accent (a reference to Genndy Tartakovsky's own accent that he spoke with during childhood and prank calls Rob Renzetti sent to Tartakovski while the two were at CalArts). Dexter's favorite superheros are Major Glory, Action Hank and Monkey (not realizing that Monkey is in fact his own lab monkey). Despite his great genius, Dexter is in fact very naive and occasionally very ignorant about certain subjects to the point where it seems like he lacks common sense; such examples of are his ignorance to classic arcade machines and strongly denies the possibility of magic despite the strong evidence unlike the rest of his family, strongly denying the existence of the supernatural or the Tulpa (Commonly known as “imaginary friends” without any physical proof.

Dexter is still a young and inexperienced child who lacks wisdom and experience. Dexter also has a huge ego which often clouds his judgement and has caused him to make rash and often morally questionable decisions.

Dexter is rude to everyone he meets who does not share his intelligence, and willingly uses his intellect to strike back at his tormenters. He is also naturally prideful and arrogant, making him very unwilling to accept criticism from others, including his own family, about his behavior. Ultimately, Dexter has always put science first, before his family, and indeed, before innocent people, and is completely unaware of his faults. Due to his arrogance, obsession with science, and general lack of empathy and disdain for others, he is unsuitable for the role of successor to inherit the American Spirit from Major Glory, despite his admiration of the hero.

In the possible future, Ben was described by Paradox to be more wiser, mature and learned from his mistakes and regrets of his past actions.

## Biography

### Alternate Future

In an alternate future, Dexter now an adult was transported into the 31st century of his Earth when he witnessed an apocalyptic world devastated by an alien invasion led by the Glorft and an Eliksni faction where he meets a man by the name of Professor Paradox Who brought him to this future to which was the conflict between the Glorft and the remnants of the Earth Coalition, he witnessed a battle against the alien invaders by a lizard-like creature, only to turn into Cannonbolt, one of the alien forms Dexter recognised to be the forms of Ben Tennyson, only to learn the current Wielder of the Omnitrix is Ven Tennyson, the direct descendant of Ben 10.

Revealed to have been brought to the 31st Century by Paradox to see what is in fact an alternate future of which Earth’s civilizations had suffered by the event known as The Collapse, what he thought be here to help change the timeline to prevent this disaster was not Paradox’s goal but to give Earth due to the timeline would attempt to reorder itself and previous attempts had been made but failed. Refused to believe this be the future to be, Dexter recalled the times how he was ashamed of his earlier self for letting his ego get the better of him and wished to have made amends, recalling the time Megas was brought back to his time and suddenly gained an idea to perhaps give the future another chance by delaying the disaster events long enough for Earth and other worlds connected to be ready before it could happen.

## Powers and Abilities

### Semblance: Neuron Enhancement

Enhances communications between the neurons in his body, allowing for increased thought complexity and reason.

## Relationships

### Family

**Fergle O'Reilly -**

**Dexter O'Reilly Sr. -**

**Dee Dee O'Reilly -**

### Rivals

**Dipper Pines -** The first meeting between the two lead to their views clashing and butting heads, with Dexter showing outright disdain refusing to believe or acknowledge the supernatural in any form.

### Neutral

**Double D -** While not close enough to call him friend Dexter did acknowledge Double D's own genius while they worked on the portal.

## Background Information

Dexter is the main character and protagonist from the animated series *Dexter's Laboratory*.

## Trivia

* It is worth noting that Dexter's personality in the story of *Grimmfall* takes more inspiration from his personality in his home series rather than the *Fusionfall* video game where he had matured to the point of being a powerful force for good.
* It was recalled in GrimmFall, Dexter made a bet with Mabel he would eat his boots if proven the supernatural is real during his stay in Gravity Falls
	+ In the GrimmFall: *Acceleracers* epilogue, Dexter recalled his regret to make that bet and hoped to have changed his past of that moment.