Kai Green

Kai Green is a Navajo girl who is the granddaughter of Wes Green, a friend and former partner of Max Tennyson. She is also currently Ben's girlfriend.
==Appearance==
===Regular Appearances===
In the original series, Kai had long, black hair and brown eyes. She wore a red shirt, green shorts, brown boots with white socks. She had silver bracelets and a blue ring.
In Omniverse, Kai has grown noticeably taller. She is slender yet athletic in build. She wears a short-sleeved red T-shirt with a red and peach colored sweater. She still has brown boots (now with blue stripes) and her shorts are even shorter now. Her hair is in a high ponytail and she also has a tan earring. She wears brown gloves, tan socks, and a belt.
===Occasional Appearances===
At the beginning of Benwolf, she wore a knee-length blue dress with red stripes as well as red shoes with white socks.
In Ben's daydream in Perfect Day, she was seen wearing a green and black cheerleading outfit with white accents.
In An American Benwolf in London, Kai lost her sweater in battle and is seen without it for most of the episode. In The Secret of Dos Santos and most parts of The Most Dangerous Game Show, she is seen without her sweater.
Kai OS Dancing Outfit.png|Kai in her dancing outfit in the original series
Kai OS Cheerleader.png|Kai in a cheerleader outfit in Perfect Day
Kai Official Ov.png|Kai with her sweater in Omniverse
Kai OV Life Jacket.PNG|Kai wearing a life jacket in An American Benwolf in London
==Personality==
Kai is a dedicated girl who preserves and values her grandfather's work, exhibiting strong attachment to the objects he collects from his travels. She gets very upset if she loses one, such as when Spanner takes the Orb of Pumapunku in Fight at the Museum. She does whatever she can to fulfill her goals, always trying to find a way to overcome adversity, especially when artifacts or treasure are involved. Additionally, she is quite intelligent and resourceful for her age, as shown in her adventures with Ben and Rook.
Despite her typically serious and stoic attitude, Kai also exhibits a playful side, often teasing Ben and making snide remarks at his expense, masking her feelings for him. However, her true feelings are often revealed when she is especially excited or elated, such as when she kisses Ben in The Secret of Dos Santos after he helps guide her to the Temple of the Sky.
==History==
===Ben 10===
She first appeared doing a spiritual Native American dance in the episode Benwolf. She was Ben's second crush, but she only took interest in him after he started becoming Blitzwolfer because she wanted to, as quoted, "train and tame him". When she admitted to this, Gwen sternly reprimanded her, standing up for her cousin.
Kai made a cameo appearance in Ben's dream world in Perfect Day, where Diamondhead saves her and a group of cheerleaders from SixSix and Vulkanus.
===Omniverse===
Kai first reappeared in An American Benwolf in London. Working with her grandfather, they found the secret laboratory of Dr. Jekyll, but were quickly afterwards ambushed by the Forever Knights in their search for Dr. Jekyll's Hyde Formula. While they captured Wes, Kai managed to escape and contacted Ben and his partner Rook for help. Ultimately, they discovered the hidden location of the legendary Excalibur.
When removing the blade from its stone seemingly proved impossible even with the Hyde Formula or Ben's strongest aliens, Forever King Chadwick ordered his men to kill their enemies. As Ben battled the mutated Forever King, the cave's underground pipes were ruptured and caused a flooding. Convincing the Forever Knights to work together, everyone was able to escape alive.
In Fight at the Museum, Kai came to Bellwood to host a new exhibit on alien artifacts at the Bellwood Historical Museum. Her decision to invite Ben paid off when an alien thief named Subdora tried to steal one of the artifacts, one of the first that Kai found with her grandfather. Fortunately, Ben, Rook, Ester and Spanner foiled Subdora.
Knowing that Subdora would return, the four teamed up and stayed overnight with Kai, with Spanner being forced to reveal that he comes from a future where Kai and Ben have been married. Thanks to Spanner, Kai and Ben were locked in a room together where the two, despite their best efforts, bonded. Later after Subdora's partner Exo-Skull tore through the museum and took the "key to time itself" from the artifact. Spanner took the artifact itself, leading Kai to believe she had lost one of the most important things in her life.
In the The Secret of Dos Santos, Kai called Ben to Dos Santos, a village in South America to help her track down the Temple of the Sky, an ancient temple with distinct alien origins. Kai soon developed a love-hate relationship with Ben and his antics, particularly his nicknaming her "the future Mrs. Tennyson," simultaneously annoying and helping her locate and get into the temple. Arriving at the temple's treasure Temple Kai encountered a Galvan named Ujin.
Professor Paradox arrived and explained that the artifact the group had found was the final component of a villain named Maltruant, a rogue Chronosapien obsessed with taking over all of time and space. Exo-Skull tore into the room and escaped with Subdora and Maltruant's help. After disgusting Kai with his remark about how they're going to get married in the future, Ben left Dos Santos in his Time Cycle.
In The Most Dangerous Game Show, Kai was one of several contestants chosen to compete in "The Most Delicious Game" for the chance to marry Ben. She was the ultimate winner, and joined Ben on a mission to free the losers, who were trapped in the Null Void. After Charles Zenith was defeated, Ben slipped on a banana peel and fell towards Kai, and the two accidentally kissed.
==Powers and Abilities==
AABiL (172).png|Skilled Melee Combatant 
Benwoof (22).png|Navajo Dancing Proficieny 
AABIL31.PNG|Enhanced Reflexes
SoDS (441).png|Enhanced Agility
SoDS (376).png|Wall Scaling
FaM (392).png|Ancient Alien Staff (temporarily)
Kai has considerable tracking skills taught to her by her grandfather.
Kai is able to speak Spanish.The Secret of Dos Santos
Kai has been taking Judo lessons, showing considerable skill against trained soldiers of the Forever Knights.An American Benwolf in London She can also scale walls with relative ease.The Secret of Dos Santos
==Relationships==
==Appearances==
===Ben 10===
====Season 3====
*Benwolf (first appearance)
====Season 4====
*Perfect Day (dream; cameo)
===Omniverse===
====Season 5====
*An American Benwolf in London (first reappearance)
====Season 7====
*Fight at the Museum
====Season 8====
*The Secret of Dos Santos
*The Most Dangerous Game Show
==Etymology==
In Navajo, Kai means "Willow tree".
==Trivia==
*Kai's appearance and portrayal in Omniverse is very similar to Lara Croft from Tomb Raider series.
*In An American Benwolf in London, Kai is able to slightly move the sword Excalibur from its stone, having grabbed on it to prevent herself from drowning.
**Her future self is seen wielding Excalibur in The End of an Era.
*Blitzwolfer is Kai's favorite out of all of Ben's aliens. She also thinks that Pesky Dust is cute.The Most Dangerous Game Show
*While originally only interested in Ben's Blitzwolfer form, she has since shown signs of growing feelings for Ben as himself, becoming bashful when people imply they are a couple. She also impulsively kissed XLR8 on the lips as thanks for showing her the way to the Temple of the Sky.
==References==
es:Kai Green
pl:Kai Green
pt-br:Kai Green
ro:Kai Green
ru:Кай Грин
Category:Characters
Category:Humans
Category:Human Females
Category:Females
Category:Original Series Characters
Category:Allies
Category:Heroes
Category:Secondary Characters
Category:Introduced in the Original Series
Category:Omniverse Characters
Category:Classic Characters