Omi was a primary character from the Xiaolin Temple who journeyed in a quest for all Shen Gong Wu as the Dragon of Water in training. An orphaned monk, Omi was raised by Master Fung in the Xiaolin Temple, a mystical home where monks train to become Xiaolin Warriors. Omi eventually became the Xiaolin Dragon of Water and although he believed he was the "chosen one", he met with three other soon-to-be Xiaolin Warriors named Raimundo Pedrosa, Kimiko Tohomiko and Clay Bailey. Omi was initially skeptical and wary of them, beginning to doubt himself as the chosen one. However, Omi began to take a fondness for them, and they became not only his teammates, but also his best friends.
The Xiaolin Dragon of Water met many enemies and adversaries with his team, ranging from the evil boy-genius, Jack Spicer, the evil Heylin witch, Wuya and to the once-good but currently evil Heylin Dragon, Chase Young. Omi's signature Shen Gong Wu is the Orb of Tornami, corresponding with Omi's liking towards water.
Omi has lived at the Xiaolin Temple for most of his life. He was an orphan taken in by Master Fung, the head of the temple. He was very proficient in martial arts, so Master Fung started training him to become the Xiaolin Dragon of Water. Omi met the rest of the Dragons, and they began their quest to find all the Shen Gong Wu. Omi did not start off too well with his fellow Dragons, especially Raimundo, who pulled his pants down several times. This was when they first met their enemies; Jack Spicer and Wuya. He fought Jack Spicer in a Xiaolin Showdown for the first time, his Two-Ton Tunic for Jack's Mantis Flip Coin. He began to lose, due to how heavy the Two-Ton Tunic was, but after using everything he learned from the other Dragons (and Jack's carelessness), he got to the finish first and was able to claim the Eye of Dashi as theirs.
Turn to Evil
After some time, they met Chase Young. Chase saw potential in Omi, saying that he would one day become powerful enough to defeat him. Chase, knowing this, told Omi he was working for the wrong side. He started working to turn Omi to the Heylin side, or else he would be forced to destroy Omi altogether. Chase convinced him to go into the Ying-Yang world to look for Master Fung, whom Chase had imprisoned. Omi, not knowing the danger of using the Ying Yo-Yo, entered the Ying-Yang world, and came out without his good chi, turning him evil. Feeling betrayed by his friends, Omi joined Chase's side and for a time ruled alongside Chase.
The other monks were able to restore Omi's chi, but Omi was still bound by the pledge of loyalty he made to Chase while evil. Chase took possession of Omi's chi (shown through the transfer of his forehead dots), and in this way made Omi one of his Jungle Cats. With Omi's chi, Chase was even more powerful and unstoppable.
Omi´s friends eventually wagered themselves and their eternal loyalty to Chase in exchange for Omi's freedom in a 4-on-4 soccer Showdown, which after a very tense game, the Xiaolin side won, resulting in Omi rejoining the good side once again and the world being restored to normal.
After months and showdowns, Master Fung told all the dragons that he would promote only one monk to master dragon, and tells them they all had to go on a quest of their own choice. Omi decided that he would go back in time to stop Chase Young from ever becoming evil. He did so by freezing himself for 80 years, so he could be awake in the future to get the Sands of Time. He found the temple destroyed, and the other monks captured. Jack Spicer had gained the upper hand and became the Emperor of Darkness. In this future it had been determined that Kimiko had been promoted to head dragon. Eventually, Omi was able to get the sands of time and travel back in time to save his friends from that horrible future. There, he switched the Lou-Mang-Long soup (Soup of the dragons) Hannibal Roy Bean planned to give Chase to make him evil for pea soup. Going into the present, he finds that Clay Bailey had become the head dragon and had the other dragons farm and live another life in the evil world concurred by an evil Master Monk Guan (character), whom Hannibal turned after failing to do so to Chase. They were captured, and to free them, the good Chase Young drank the evil soup and became the evil lizard creature he was in the original timeline, sacrificing his good self to do so. Omi returned to stop what he did. Omi, Kimiko, Clay, and Raimundo fought Hannibal Bean, Evil Master Monk Guan, Chase Young, and Wuya, a showdown the Xiaolin monks won. Omi returned to a normal present, where Master Fung eventually declared Raimundo Pedrosa the head dragon. In the end, they all got ready to battle every villain they had ever faced, before the show ended.
While Omi was very skilled at what he did, he was also narcissistic, believing himself superior to his comrades in every possible way, which caused some tension, such as with Jermaine and Raimundo. This trait did not disappear or even slow down during the course of the series. The Bird of Paradise revealed that his greatest trait was loyalty. Omi was proud of his status as a Xialin monk as he always kept his word as a monk and was loyal to his comrades. Omi had a problem with American idioms and was constantly corrected. Originally, Omi's views on women was rather old-fashioned. Drawing on the words of a 1500-year-old book about women, he did not believe Kimiko was a capable fighter and saw her as being way too weak. While he did not mean any genuine offense, he could not understand why Kimiko seemed offended. He would later come to appreciate Kimiko as he became more aware of the modern world, although he still has trouble understanding Kimiko and girls in general.
Omi was a very small boy, bearing a large, circular, bald head. Whilst having yellow skin, he has a big forehead where nine white dots appear when Omi fights with his true potential. These white dots can be taken as a metaphor of him unleashing his ultimate potential.
Aside from this, he has elongated thin black eyebrows and small black eyes. He was also known to always wear his monk uniform, consisting of a red shirt slightly revealing his neck with black highlights, held tight with a black belt and using black pants with black dress shoes. He tends to wear this all the time, due to Omi's usual life of a monk, he was unknown of the rest to the world outside the Xiaolin Temple.The only times we saw him in anything but his monk unifrom was when he would change into his special armor for a Xiaolin Showdown.
Raimundo - Omi and Raimundo have many contradicting personality traits. Omi was very studious and held great admiration for authority figures like Master Fung and Master Monk Guan, where as Raimundo was undisciplined and often had issues obeying authority figures. Though Raimundo teased Omi once in awhile they did care about each other similar to an older/younger brother relationship. When Raimundo joined the Heylin, Omi found it the hardest to accept, and when Omi joined the Heylin side in season two, Raimundo seemed to lead the group in attempts to get him back. When Raimundo was named the Shoku Warrior, Omi was able to put his pride aside to be happy for him.
Kimiko - Originally, Omi's views on women were rather old-fashioned. Drawing on the words of a 1500-year-old book about women, he did not believe Kimiko was a capable fighter and saw her as being way too weak. While he did not mean any genuine offense, he could not understand why Kimiko and other girls seemed offended. He would later come to appreciate Kimiko as he became more aware of the modern world, although he still had trouble understanding Kimiko and other girls. But they are good friends. Kimiko was more of a sister figure to Omi as she was always showing him gadgets from the modern world and seen often protecting him from bullies like Raimundo. Omi was very surprised when Kimiko showed him affection like when she hugged him on a couple occasions. Omi was the one who cheered Kimiko up when her father had been zombified by the Zing-Zom bone.
Clay - Clay, as he was with many people, was very friendly towards Omi. Clay looked after Omi and protected him from danger. Omi and Clay almost never contradicted each other, and on many occasions saved each other from danger or even death.
Jermaine - Jermaine was one of Omi's best friends. They met in New York in the episode "My Homey Omi." They were pited against each other as rivals when Jermaine returned as Chase Young´s student, but in the end, they were friends again.
Jack Spicer - Jack was the first villain Omi and his friends ever faced, and the person Omi had the most Xiaolin Showdowns with. In spite of this Omi and Jack had numerous traits in common. Both were very talented in their own ways, Omi in martial arts and Jack in robotic engineering. They were both extremely egotistical, Jack believing he was the world's greatest evil boy genius and Omi thinking he was the greatest Xiaolin warrior ever. They both also seemed to have family issues, Omi being orphaned and Jack's parents apparently having no involvement in his life. Unlike his friends, Omi seems to see some good in Jack. When Jack helped the monks defeat Wuya, Omi invited Jack to live with them in the temple, to which Jack refused but offered going out for ice cream sometime. A second time Omi offered Jack to join the temple, he accepted, though he returned to his evil ways. In a showdown with Jack, Omi accurately guessed that Jack wanted to conquer the world because he felt insignificant and that he did want to become good but gave up because he believed he would fail.
Chase Young - Chase was the villain who successfully turned Omi to the Heylin side, even turning Omi into one of his jungle cats. Chase had used many tricks to test Omi's abilities, such as taking Jermaine on as an apprentice so he could fight Omi for him. He also tricked Omi into going to the Ying-Yang World to save Master Fung, ultimately losing his good side there. Chase was also shown to have a good side from time to time, helping the Xiaolin Warriors defeat spider monsters from the Earth's crust, and giving Omi information to help him and his friends defeat Sibini the evil spirit of mischief who took over Clay´s mind. Omi used the Sands of Time to go to the past and stop Chase from becoming evil, however the future was so awful, that as a result good Chase willingly sacrificed himself to become evil to restore things to normal and save Omi and his friends.
Dragon Powers and Abilities
- Water Manipulation/Generation: As the Dragon of Water, Omi was able to manipulate and/or generate water out of thin air at his whim and desire, and even turned water into ice, and gave both water and ice any shape he wanted. It could be anything from a wave to giant watery hands.
- Ice Manipulation/Generation: Since the ice is just another form of water, Omi was able to manipulate and generate ice and snow at will, the same way he did with the water.
In addition to his elemental abilities and martial arts skills, he had other superhuman attributes such as:
- Superhuman Strength: He was also super strong, capable of breaking stones and steel with one single kick or his bare hands.
- Enhanced Speed: He could move and run to nearly superhuman speed.
- Enhanced Reflexes: His reflexes were enhanced to nearly superhuman levels.
- Enhanced Agility: He possess agility beyond that of a normal human being. He could dodge attacks, swing from things easily, do back-flips and numerous other gymnastic, athletic and martial movements with little effort.
- Superhuman Equilibrium: Omi had the ability to achieve a state of perfect equilibrium in any position imaginable.
- Enhanced Durability: He has proven to have a nearly superhuman durability.
- Tiger Sense: He was able to sense an opponent without using his eyes. 
- Elemental Manipulation: On several occasions he had control over all four elements, and was able to use the elemental attacks of the other monks.
- Elemental Energy Form: When the monks got their elemental shen gong wu, he was tricked by Hannibal Bean in order to absorb the energy of all the other wu. Later, due to further events, he became an elemental energy being and his elemental abilities were enhanced way beyond his normal limits.
- Cloud Mimicry: When he became an elemental energy being, his body was made out of clouds and energy.
- Duplication: In this form, he was able to duplicate himself several times.
- Lightning Generation: In this form, he was able to generate lightning. Also, he was able to turn into lightning.
- Enhanced Strength: In this form, his strength was enhanced way beyond his normal limits.
- Enhanced Durability: In this form, his durability was enhanced way beyond his normal limits.
- Enhanced Speed: In this form, his speed was enhanced way beyond his normal limits.
- Deflection: He was able to redirect elemental attacks the same way Hannibal does.
- Tsunami Strike Water: Omi was able to spin around in a circle continuously until he created a large tornado of water which would be used to engulf the enemy, blast the water at them, or spin towards them and attack them. Also, when he was in the Heylin side, he was able to use water and ice, both at the same time, creating giant water hands with two ice claws.
- Tornado Strike Water: Omi could generate powerful streams of water from his hands. This technique also involves quick spinning like the Tsunami strike, but it can also be done without it.
- Wudai Neptune Water: This took on several forms but was normally Omi shooting a jet of water or ice at his foes. Wudai Neptune Water allowed him more powerful and versatile water based attacks, such as stopping the flow of an entire waterfall and river, and even creating water out of thin air. He could also create tornadoes of water with this technique and an ice spikes from rain.
- Wudai Neptune Ice:A variation of the attack mentioned above. He could use this technique to create an ice spikes rain.
Master Martial Artist: Omi was an orphan boy who has trained in the art of Xiaolin Kung Fu since birth, becoming a Wudai Warrior.
Shen Gong Wu: His signature Shen Gong Wu was the Orb of Tornami.
Elemental Shen Gong Wu: His Elemental Shen Gong Wu was the Kaijin Charm, which he calls "icy" at first, meaning cool.
Omi was extremely scared of squirrels which he was usually attacked by. When the warriors went through Chase Young's land to get the Bird of Paradise, evil squirrels attacked and Omi was paralyzed with fear. Furthermore, his self-centered attitude went against him making him seem hard to like, especially when it came to Raimundo.
|Jack Spicer||The Journey of A Thousand Miles||Pillar Hopping||Two-Tun Tunic||Victory|
|Katnappe||Katnappe!||Tag||Golden Tiger Claws||Loss|
|Jack Spicer||Ring of the Nine Dragons||Snowboarding||Ring of the Nine Dragons||Loss|
|Jack Spicer||Night of the Sapphire Dragon||Find the Wu||Mantis Flip Coin||Victory|
|Jack Spicer and|
|My Homey Omi||Shen Yi Bu: Basketball||Mantis Flip Coin|
|Jack Spicer||Royal Rumble||Race with a Twist||Star Hinabi||Victory|
|Jack Spicer||Mala Mala Jong||Acorn Collecting||Jetbootsu||Loss|
|Dashi||Days Past||Take the Pebble||Orb of Tornami||Victory|
|The Shard of Lightning||Showdown Trio: Last Man Standing||Tongue of Saiping||Victory|
|Vlad||The Crystal Glasses||Find the Exit||Crystal Glasses||Victory|
|Cyclops||Sizing Up Omi||Shen Yi Bu: Valley |
of Death Race
|Wings of Tinabi |
Orb of Tornami
|Dojo||Enter the Dragon||Capture the Opponent||Changing Chopsticks||Victory|
|The Sands of Time||Tag Team:Pyramid Race||Third-Arm Sash|
Thorn of Thunderbolt
|Jack Spicer||Hear Some Evil||Game of Uncle||Silk Spitter||Victory|
|Worst Fears||Dreamscape||Eight-Way: Sumo Wrestling||Two-Ton Tunic||Victory|
|Raksha||The Deep Freeze||Shen Yi Bu: Ice Hockey||Orb of Tornami|
Golden Tiger Claws
|Jack Spicer||Screams of the Siren||Climb the Icy Mountain||Orb of Tornami||Victory|
|Heylin||Time After Time: Part II||Rescue the Damsel||Orb of Tornami||Victory|
|Xiaolin Showdown||Xiaolin Chronicles|
- Physically, Omi was the youngest one of all the monks, even though, since he was frozen twice he became now the oldest one of all, having around 1600 years old. He was frozen for 1500 years when he was in the past, looking for the puzzle box to trap Wuya again, and then another 80 years in the episode Time After Time.
- It's never explained why he is so similar to Dashi.
- He was the only character that was not the team leader in any alternative time line or the mainstream.