“Well, I don't like rules . . . the minute the coast is clear, I'm bustin' out of here.”
— Jacob to Cole and Karlof, "Ninja Roll"

Jacob Pevsner is the current Elemental Master of Sound and a competitor in Master Chen's Tournament of Elements, alongside the other Elemental Masters of his generation. Jacob competed against Skylor, but lost when she used her element. Afterwards, he was ridden of his powers and forced to work in Chen's Noodle Factory. As the other Elemental Masters reclaimed their elements, Jacob was separated, but would ultimately unlock his Elemental Dragon and escape Chen's Island.

Jacob and the Elemental Masters united against Chen, who completed a spell that transformed him and his followers into fake Anacondrai. Consequently, an ancient conflict was renewed, as the new alliance of Elemental Masters fought Chen's army at the Corridor of Elders before Garmadon sacrificed himself in a bid to banish their adversaries to the Cursed Realm.

Months after the war's end, Clouse released Nadakhan from the Teapot of Tyrahn. Infuriated over the destruction of his home realm, Nadakhan sought revenge on the Ninja, and began trapping the Elemental Masters in the Sword of Souls to eliminate any opposition. At one point, Jacob was imprisoned in the weapon offscreen,[1] but after Jay made his final wish, recent events were erased and he was freed.


Jacob Pevsner was born as a descendant of the Elemental Master of Sound.

The Invitation

Jacob boarded Chen's Ferry with the other Elemental Masters to come to the Tournament of Elements. He was seen practicing his sitar.

Only One Can Remain

Jacob was among the Masters when Chen explained how the Tournament functioned. He was also one of the Masters who obtained a Jadeblade during the competition.


Jacob made small cameos as he and others watched the first few Tournament fights.

Ninja Roll

Jacob was fighting Skylor in the tournament, but he lost and when he was in the factory with Cole and Karlof, he was talking to them and he tried to escape from the factory, but he got caught by Clouse and he brings Jacob to feed his pet giant Anacondrai snake (implied to be fed to).

The Day of the Dragon

While not appearing physically, he does a voiceover during the credits. It is stated that he was feeding Clouse's pet (not being fed to her) and that the Snake would not eat (not knowing it is dead) and wondering where everyone was.

The Greatest Fear of All

Gravis implied that Jacob unlocked his dragon and escaped from the island.

The Corridor of Elders

Jacob eventually made it back to Ninjago and was present with the other Elemental Masters when they discussed their next move in the Samurai X Cave.

Later, Ronin would steal this sitar and place it in his pawn shop for sale.

In LEGO Dimensions (non-canon)

Jacob appears briefly at the beginning of the "Elements of Surprise" level in LEGO Dimensions. Taking place during the Tournament of Elements, Jacob faces off against Eyezor, though is promptly defeated. Before Eyezor can strike the finishing blow however, Gandalf, Wildstyle, and Batman arrive through a portal and land on top of Eyezor. Taking advantage of the situation, Jacob hands a sword to Batman and flees.


His clothing is very 60's or 70’s, with a large black afro hairstyle and glasses with stars in the middle. His legs and jacket are colored cyan while his shirt is orange with a gold collar. On his back is a golden barbell insignia.



  • He is blind and he uses his Sound to see the body heat from people and feel their movements.
  • He, Jay, Lloyd, and Griffin are the only Elemental Masters to have official last names.
  • In "The Day of the Dragon," during the credits, he says that he had to feed Clouse's snake after he was hauled off by Zugu for trying to escape. However, he mysteriously appears with the other Elemental Masters two episodes later.
  • He is the only Elemental Master who has short legs.
  • He is one of three Elemental Masters that wear shades.
  • His appearance is hypothesized by Tommy Andreasen to be modeled after real-life celebrity, Bootsy Collins.[2]
  • Jacob is the only Elemental Master who does not appear in The LEGO Ninjago Movie Videogame.
  • He is one of the four Elemental Masters left without a minifigure, the others being Bolobo, Gravis, and Chamille.
    • He, these three and Ash are the only masters left not confirmed to return in Season 9.
  • Jacob is voiced by Paul Dobson, who voiced two other Elemental Masters in the series, these being Wu and Neuro.





Master Wu · Lloyd · Kai · Nya · Jay · Cole · Zane
Allies: Misako · Falcon · Cyrus Borg · P.I.X.A.L. · Ronin · Dareth
Former Members: Dr. Julien · Master Garmadon


Samukai · Wyplash · Kruncha · Frakjaw · Chopov · Nuckal · Krazi · Bonezai


Anacondrai: Arcturus · Pythor P. Chumsworth
Fangpyre: Fangtom · Fangdam · Fang-Suei · Snappa
Venomari: Acidicus · Lizaru · Spitta · Lasha · Zoltar
Constrictai: Skalidor · Bytar · Chokun · Snike
Hypnobrai: Skales · Slithraa · Mezmo · Rattla
Other: The Great Devourer


Leader: Captain Soto
First Mate · No-Eyed Pete

Stone Army

Creator: The Overlord
General Kozu · Giant Stone Warrior · Stone Warrior · Stone Swordsman · Stone Scout


General Cryptor · Nindroid Drone · Nindroid Warrior · Min-Droid

Anacondrai Cultists

Chen · Clouse · Zugu · Eyezor · Kapau · Chope · Krait · Sleven

Elemental Masters

Ash · Bolobo · Chamille · Master of Shadow · Paleman · Karlof · Tox · Shade · Neuro · Master of Gravity · Master of Earth · Master of Ice · Master of Light · Master of Smoke · Skylor's Mother · Master of Lightning · Gravis · Griffin Turner · Maya · Ray · Skylor · Jacob Pevsner · Lar

Ghost Warriors

Leader: The Preeminent
Morro · Chain Master Wrayth · Blade Master Bansha · Scythe Master Ghoultar · Bow Master Soul Archer
Ghost Ninja: Attila · Hackler · Howla · Ming · Spyder · Wooo
Ghost Warriors: Cowler · Cyrus · Ghurka · Pitch · Pyrrhus · Wail · Yokai

Sky Pirates

Leader: Nadakhan
Flintlocke · Dogshank · Doubloon · Monkey Wretch · Clancee · Bucko · Squiffy · Cyren


Creators: Acronix · Krux
Machia · Raggmunk · Blunck · Vermin · Rivett · Slackjaw · Tannin · Buffmillion

Sons of Garmadon

Leaders: Harumi · Lord Garmadon
Killow · Ultra Violet · Mr. E · Luke Cunningham · Chopper Maroon · Mohawk · Sawyer · Scooter · Buffer · "Snake Jaguar" · Colossi

Dragon Hunters

Leader: Iron Baron
Jet Jack · Heavy Metal · Skullbreaker · Arkade · Muzzle · Daddy No Legs · Chew Toy

Non-Canon Enemies

Quartet of Villains · Evil Bees · Gahrann the Dreamer · Hibiki · Ice Serpent · Kirchonn the Invincible · Mask of Malice · The One Who is Many · Time Ninja


Grundle · Spykor · Starteeth · The Leviathan · Treehorn · Craglings · Mud Monsters · Geoatomic Rock Monsters · Ice Serpent · Walliper · Colossi
Dragons: Fire Dragon · Lightning Dragon · Earth Dragon · Ice Dragon
Elemental Dragons: Golden Dragon · Elemental Earth Dragon · Elemental Fire Dragon · Elemental Form Dragon · Elemental Gravity Dragon · Elemental Lightning Dragon · Elemental Metal Dragon · Elemental Mind Dragon · Elemental Nature Dragon · Elemental Poison Dragon · Elemental Shadow Dragon · Elemental Smoke Dragon · Elemental Speed Dragon · Titanium Dragon · Elemental Water Dragon · Morro Dragon · Master Wu Dragon
Fusion Dragons: Ultra Dragon · Hydro Electric Dragon · Fusion Dragon


Bizarro Ninja · Brad Tudabone · Carridi · Cathy · Claire · Cliff Gordon · Clutch Powers · Cole's Mother · Cragger · Ed · Edna · Emperor of Ninjago · Empress of Ninjago · First Spinjitzu Master · Fenwick · Finn · Fred Finley · Gayle Gossip · Gene · Genn · Echo Zane · Harumi's Mother · Hageman Brothers · Harumi's Father · Hibiki · Hutchins · Jesper · Juggernaut · Laval · Lou · Mistaké · Night Watchman · Nobu · Noonan · O'Doyle · Oni · Patty Keys · Postman · Restaurant Owner · Rodrigo · Royal Guards · Rufus MacAllister · Warden Noble · Sally · Simon · Tai-D · Tommy · Tour Bus Driver · Phantom Ninja · Rachel Sparrow · Sally · Sparring Robot · Suzie Wheeler · The Mechanic · Wohira · Master Whoosh · Master Yang · Yost