Jack Alder

thumb|714x714px|Casual
thumb|Lighting Ninja
Jack Alder also known as the Blue Ninja, and Water Mystic is one of the main protagonists of the series.
He is the only character to obtain two different elements from different sources.
==Appearance==
Jay has brown curly hair generally wearing blue clothing to represent his elemental color.
He has brown eyebrows and light freckles.
Prior to Children of Oni, Jack had short, straight, reddish-brown hair, with a notch on his right eyebrow.
In addition, he was not shown to have freckles.
For casual attire, since "The Royal Blacksmiths," Jack wore a blue jacket with a white stripe over a white T-shirt and blue pants.
He wore a blue beanie over his hair in Skybound.
From "My Dinner With Nadakhan" to "Wishmasters," Jay wore a dark blue eye patch over his left eye.
Briefly in "The Way Back," during a battle with the Sky Pirates to a few seconds after he made his final wish, he wears a similar second eyepatch over the same eye that was black instead of dark blue.
In Prime Empire, his avatar, Superstar Rockin' Jack, makes Jack look quite different from his regular appearance.
His skin is a light blue color while having darker spots of blue all over his body, mostly in a triangle pattern on his face and torso.
He also has a dark blue lightning bolt by his eyes, which are now yellow.
He now has white hair while wearing a yellow headband and his attire consists of a blue Elvis-like uniform with yellow spots of different shapes as well as a star on the left side of the chest.
==Personality==
Jack is the most light-hearted and energetic of the ninja.
He is always telling jokes, most of which are only funny to himself.
He usually does this to cover up fear and anxiety, as revealed in Season 6.
He is also sensitive in both positive and negative ways and thinking. 
He enjoys boasting about his abilities, such as inventing and poetry, much to the annoyance of the others, but he proves to be a good friend and a skilled fighter.
He is also somewhat high-strung, typically being the first to panic in dire situations.
He is fond of those he is loyal to, but will go against them if they wrong him.
Jay also hosted a television show between Rebooted Arc and Tournament of Elements Arc where it showed his charismatic nature.
It was revealed that he also wore makeup (when he hosted the show) in which Jay comments that "concealer is a time-honored tool of the ninja."
This could mean he wears makeup regularly.
Jack has always be a likable and charismatic character, despite being annoying sometimes.
Besides his show, he had his own "League of Jay" where fans inspired by him had avatars that looked like him.
As Superstar Rockin' Jay, it was another show of his charismatic but egotistical nature.
And without meaning to, he caught the eye of the Munce Queen after bragging about his skills in Master of Moutain Arc.
Jack can get a laugh out of making fun of his friends.
He also has a lot of faith in his friends, assuring everyone that Adam would come to their rescue when they were all imprisoned by Chen, only to be incredibly sad and worried when Adam didn't show up.
Jay is fond of inventing, technology, and the color blue.
Technologically, Jack is one of the smartest out of all the six ninja, possibly second to Sam, because he was raised by parents who were mechanics.
The ninja have relied on him to been the engineer at times.
Jack is embarrassed of his doting parents, and dismisses the advice they give (like when Edna asks Jack if he brought extra underwear and it turned out he did not when he had to pull the sails of the Bounty while it was raining).
But he is still is extremely loving of his parents, never wanting something bad to happen to them.
Jack was the only other Ninja other then Adam to be on good terms with his parents when the show started.
His parents were the first to be introduced as they came by to visit him and the other ninja (in which they mentioned Jay didn't go to visit them).
Over time, it seems Jack grew to be less embarrassed of them.
Jack values technology more than the others.
In Rebooted Arc he was the most excited to visit Borg Industries, who revolutionized New York.
He also told Clouse in Tournament of Elements that he would rely on nuts and bolts over magic.
Harumi identified Jay as "the joker whose mouth is as fast as lightning," which he took pride in.
Even in the pilot episodes the characters have described Jay as talkative.
It can be inferred that Jack is sloppier than the other ninja.
When Harumi found a pair of blue underwear on the main console, Jack was immediately embarrassed.
Jack is also more likely to take shortcuts, though the other ninja do as well such as in Season 4 where his injury led him to using a mech left in the jungle by Chen, even after Jack claimed he wouldn't take any of Chen's gifts.
Another example of shortcuts would be in Season 13 where he cleaned up the leaves in the yard with Spinjitzu and risked getting lectured from Master Wu.
When he wasn't, Ian commented on how strange it was that Wu gave up a moment to reprimand him in which Jay agrees.
This shows that this may be normal behavior for Jay and his relationship with Wu is like a parent and a child.
At random times, Jay has a habit of talking, shouting, or screaming very loudly.
It's usually whenever he loses his temper, he gets really scared or freaked out, or when he sometimes becomes impatient.
It also happened during dangerous or tight situations.
An example of this is when Nick tries to tell the other ninja that the Great Devourer has a weak spot on its forehead, Jay responded with sarcasm and then yelled that it is impossible to kill it, due to it being "ridiculously" huge.
Another example is when he freaks out upon seeing the Tiger Widow when he was sent to collect its venom.
Jack has always been obsessed with video games.
He was upset when the Monastery was burnt down in Season 1 because he lost his high score.
In the Cloud Kingdom, he was excited to find a pinball machine.
Season 12 was a video game season and Jack was the most experienced and excited to be inside a video game.
Jay was also shown to be a great dancer in the Prime Empire shorts, due to his skills in rhythm games.
In "Game Over," Jack reveals that deep down, he feels sad about his birth parents abandoning him in a junkyard, explaining to Unagami that he always wonders why they did it and hopes that it was for a good reason, if there's even a reason behind it all.
==Powers, Skills & Abilities==
*Lightning: Jack can harness the power of Lightning to create a Spinjitzu tornado of pure electricity. He can also seemingly fly with his powers, although he hasn't used this ability ever since, as it seemed to be part of his True Potential abilities. His lightning powers were enhanced further by the Nunchucks of Lightning, and later by his Elemental Blade.
*Elemental Dragon: Like all other Elemental Masters who managed to overcame their fears, Jack is capable of summoning his own Elemental Lightning Dragon at will.
*Mechanical skills: Jack has an eye for machines and gadgets, being in charge of repairing and maintaining the various technology at the ninja's disposal. He was responsible for restoring the Destiny's Bounty to a functional state and equipping it with the modifications needed to make it fly. Over time, his inventing side was less emphasized, due to Dr. Julien, and P.I.X.A.L. taking up the role of gadgeteer, but Jack's skill with technology should not be underestimated.
*Video game proficiency: Thanks to playing video games a lot of the time and learning skills, Jack was able to easily reach Level 13 in Prime Empire, as well as knowing how to use the video game to his advantage.
*Dancing: Prior to "Let's Dance," Jack obtained dancing skills from playing Dancy Pants.
*Guitar playing: Jack is able to play the guitar well, as shown in Prime Empire.
===Water Mystic Powers===
The Water Mystic can only make waves of water and choking giant bubbles that submerges someone and drown them.
He is also capable of creating walls of ice as well as freezing.
==Weapons==
*Nun-Chuck of Lighting (Formerly)
**Nun-Chucks
==Family==
*Edna Adler (Mother)
*Ed Adler (Father)
==Voice Actor==
Michael Adamthwaite.