jay                                               

Jay Walker (born Jay Gordon) is the current Elemental Master and Ninja of Lightning. He learned skills including Spinjitzu and discovered his other teammates, with whom he embarked on many adventures; battling the likes of the Serpentine and the Stone Army. During this time Jay formed a romantic relationship with Kai's sister, Nya.

After Lloyd defeated the Overlord, peace resumed until The Overlord returned and created an army of Nindroids that were made from Zane's blueprints. A love triangle formed between Jay, Nya, and Cole, which remained after Zane seemingly died. The Ninja parted ways after Zane's death, but upon learning of his survival, they journeyed to Chen's Island and entered the Tournament of Elements. Cole made amends with Jay over his relationship with Nya, and the Ninja and Elemental Masters fought the Anacondrai warriors. Soon after, Jay would help the Ninja battle Morro and a legion of cursed spirits while learning another martial art called Airjitzu, and they were then faced with Nadakhan, who trapped many of the Ninja in his sword. Jay and Nya battled the Sky Pirates, but when Nya was poisoned by the Tiger Widow venom and killed, Jay used his last wish to undo recent events. 

On the Day of the Departed, Jay and his parents were attacked by a revived Samukai, who Jay defeated with help from Ronin. Jay joined his allies in battling the Time Twins and the Vermillion, as well as seeking the powerful Time Blades. Though their enemies were defeated, Wu was lost in the Temporal vortex.

A year later, Jay helped battle a notorious gang that resurrected Lord Garmadon and was ultimately stranded in an Realm of Oni and Dragons with the other original ninja and Wu.

During their first week being stranded in the realm, Jay temporarily loses his sanity and ends up being captured by the Dragon Hunters along with Kai and Zane. After hearing Lloyd's voice on a radio, Jay regains his state of mind and devises a plan to free Zane, Kai, and himself from the Dragon Hunters, and designs a Firstbourne Mech to provide a distraction. They manage to escape with Cole and a growing Wu's assistance before meeting a Hunter named Faith who tells them about the Dragon Armor and they immediately head for it. Wu manages to find the armor and becomes the Golden Dragon Master, and with the Firstbourne and some dragons, they return home to Ninjago to help the Resistance defeat Colossus, while at the same time, Jay reunites with Nya.

Shortly afterward, Jay decides it's time to ask Nya to be his Yang. He sought out advice from Kai but his plans get put on hold when the Oni invade Ninjago. During the final battle at the Monastery, he finally mustered up the courage to ask Nya, which she happily agrees to. After using the Tornado of Creation on the Oni, Jay joins his fellow ninja in the creation of the new mural.

Months later, Jay and his friends fight against Aspheera and her Pyro Vipers after accidentally releasing them from their tomb. After Zane is banished by Aspheera's sorcery, he and the remaining Ninja send themselves to the Never-Realm in order to rescue him. While Lloyd went to find Zane, Jay and the others protected the Ice Fishers of Great Lake. The Ninja fight Boreal the Ice Dragon, and discover that Zane is the Ice Emperor. With Zane having managed to return to his senses in a fight with Lloyd and freeing the Never-Realm from its eternal winter, the team reunites and use the berry Krag gave Cole to head back to their home realm.

Sometime later, Jay is the first of the Ninja to enter the virtual world of Prime Empire, resulting in the legendary arcade game resurfacing and hundreds of gamers being trapped in it. Jay becomes known as Superstar Rockin' Jay to the League of Jay. The Ninja enter in search of the Key-Tanas and Unagami, thinking finding him would solve the situation. By the time the Ninja get the last Key-Tana, however, he and Nya are the sole surviving Ninja in the game. They progress but Nya gets cubed in the process, which makes Jay distraught, but he moves on to follow Unagami through the completed Manifestation Gate into Ninjago. He and Milton Dyer successfully console Unagami into releasing the formerly trapped gamers, as well as everyone who was formerly cubed, including the Ninja (Kai, Cole, Lloyd, and Nya).