Ninjago Wiki
“Winner gets the staff and leads the tribe! You know the rules. There are none, but in the Slither Pit, whatever I say goes.”
— Mezmo as the announcing arbitrator of a Slither Pit, "Home"

Mezmo is a soldier in the Hypnobrai tribe and a Slither Pit announcer. When Serpentine tried to reform, he left their village and instead established the Slither Pit arena in the Yang Tavern, where he continued his announcer career.


Note: In order to fill out the Serpentine ranks, multiple copies of the same Serpentine characters will appear in the series (excluding the generals). All notable appearances of Mezmo himself and generic Hypnobrai Soldiers will be posted below, for your convenience.

Spellbound (flashback)

Mezmo was among the Serpentine who attacked Jamanakai Village at the start of the first Serpentine War, but was repelled by the Elemental Alliance. Afterward, he was subdue alongside the rest of his tribe thanks to the Sacred Flutes, and was imprisoned in one of the tombs.

Rise of the Snakes

Rise of the Snakes

Mezmo was one of the Hypnobrai awakened when Lloyd opened the Hypnobrai Tomb. He participated in the raid at Jamanakai Village, but was forced to retreat when the ninja stole the Hypnobrai Staff from General Slithraa.

Back at the Hypnobrai Tomb, Mezmo demanded to know why Skales refused to confront Slithraa, pointing out that the Warrior could easily defeat their General and seize leadership of the tribe through force. Skales placated Mezmo by explaining that he had a plan in motion—all he needed now was the right opportunity to strike.


With their General still under the command of Lloyd, the Hypnobrai were forced to build a treehouse fortress for the young mastermind. At one point, four soldiers carried Lloyd around on a table to inspect the fortress. The next day, one of the soldiers was unwillingly made the test subject for one of Lloyd's booby traps.

When the ninja attacked the fortress, all of the soldiers followed Skales in retreating and reclaiming the Hypnobrai staff at the Spinjitzu monastery. The Hypnobrai then returned to their tomb where the soldiers cheered Skales on in challenging Slithraa to a Slither Pit. Mezmo acted as a judge for the tournament while the others watched the duel. After a long, hard fight, Skales won by using his mastery of "Fang-Kwon-Do" on Slithraa. After the victory, Mezmo presented the Hypnobrai staff to Skales who became the new general.

Never Trust a Snake

The Hypnobrai spot another tribe of Serpentine and proceed to battle. They soon realize it was the Fangpyre, a tribe whose general, Fangtom, is a close friend of Skales. Mezmo soon corners Lloyd with other Hypnobrai and Fangpyre but the would-be evil lord escaped when he was catapulted away by the Rattlecopter.

Can of Worms

Mezmo, as well as many other Hypnobrai Soldiers, are present for Pythor's failed attempt to unite the tribes. They soon pursue the four ninja, only to slip and fall in the icy tunnel.

The Snake King

Mezmo is present at the Lost City of Ouroboros sitting next to a weird-looking Hypnobrai scout. He witnesses the four tribe generals being defeated by the Anacondrai general. After that, he hears maracas falling out of the Hypnobrai scout's hands and found out that he was actually Lloyd, who was now in the Serpentines' custody. Later, the ninja were captured and Mezmo led them into the arena and freed the samurai for the battle. Later, he and other Hypnobrai soldiers went to seize the samurai only to fall beneath Ouroboros to their death.

Tick Tock

Mezmo is present at the Serpentine underground fortress. He witnesses Pythor discover the riddle to where the map of the four silver Fangblades was.

Once Bitten, Twice Shy

Mezmo is there at the Mega Monster Amusement Park where Pythor unearths the Hypnobrai Fangblade. He then pursues the Samurai only to stop when he sees some cotton candy. He later catches up and uncovers the Samurai and leaves the amusement park.

The Royal Blacksmiths

Mezmo and Snike finds a poster for the Ninjago Talent Show and informs Pythor that the Constrictai Fangblade was in the Blade Cup. He then is forced in a Serpentine group called the Treble Makers to win the Blade Cup. Then, upon Skales' order, he attacked the ninja, only to make the ninja's performance better.

Legacy of the Green Ninja

Darkness Shall Rise

Mezmo was one of the many Serpentine watching Skales try to take control of the Serpentine. When Garmadon took control instead and threatened them, he agreed to go with him inside the Black Bounty. When Chokun was demanded to be locked in the brig for saying to destroy Lloyd, Mezmo took him away.

After reaching the Golden Peaks, Mezmo cheered after Garmadon successfully made the Mega Weapon.

Pirates vs. Ninja

When Garmadon inadvertently brought Captain Soto's crew back to life, a Hypnobrai soldier was among the Serpentine gathered to protest that the ship was theirs, but was locked in the brig with the other snakes.

Double Trouble

Mezmo is one of the Serpentine serving under Lord Garmadon on the Black Bounty. He is Garmadon's "lieutenant."

Ninjaball Run

Mezmo returns as Garmadon's lieutenant. When Garmadon complains that they need to remove the excess weight, Mezmo is thrown off the ship.

The Day Ninjago Stood Still

When Skales opened the tomb of the Stone Army, Mezmo and the other Serpentine remained trapped in it after the Stone Army left.

Prior to Tournament of Elements

After the opening the door of the tomb of the Stone Army, Mezmo left the Serpentine village and established his own Slither Pit arena in the Yang Tavern, where in addition to Serpentine, humans or Skulkin could also fight. Slither Pit fights gradually became a tradition and made Yang Tavern famous as such.

Tournament of Elements

The Invitation

Continuing his career as the announcer, Mezmo would host Kai's battle against Kruncha, mistakenly referring to him as the "Flaming Shogun" and being corrected that it is the "Red Shogun." After Kai's victory, he would initiate the audience's cheers for the Fire Ninja.

Secrets of the Forbidden Spinjitzu

Ancient History

Mezmo appears as the guard who "escort" Kai, Jay, and Cole to Skales when they go looking for him.


Ninjago City vs. Ninja

Mezmo is present at Kryptarium Prison when the ninja were arrested.

Kryptarium Prison Blues

Mezmo joins in the food fight along with Pythor, Killow, and Ultra Violet.

Hounddog McBrag (episode)

Mezmo accompanies the other inmates on a bus to clean up trash along Route 22. He is pushed backwards when Nya as Samurai X arrives and tips the bus.

Personality and traits

A powerful brute, Mezmo is a proud warrior who takes great pride in his heritage as a warrior and his family's history as natural combatants, being a ruthless soldier. As a result, Mezmo is an aggressive fighter and the overseer of the Slither Pit, when not participating himself. Due to his ancestry, Mezmo has a natural inclination to uphold his family's honor and legacy and is thus naturally ambitious, desiring more power.

Likewise, as the impartial judge of the Slither Pit, Mezmo isn't one to mindlessly follow orders like the rest of his brethren and shows a degree of independent thought and tactical thinking, deriding Slithraa's decision to harbor Lloyd and likewise seeing it as an insult to the Hypnobrai image. Unsurprisingly, both his ambition and his dissatisfaction with superiors has even led him to rebel or defect, such as by siding with Skales, supporting Garmadon, or starting his own Slither Pit at Yang Tavern. Additionally, Mezmo has a tendency to speak his mind whenever he feels like it.

A proud warrior concerned with the image of the Serpentine as a warrior race, Mezmo quickly showed his disagreement over their pacifistic reforms by continuing their combat-based culture in Yang Tavern, welcoming participants of all races, genders, and identity to fight. Naturally, Mezmo only shows respect to those he deems powerful, supporting Skales for returning the Hypnobrai to vengeance against humanity and likewise praising Kai's success in the Slither Pit. As a result, he has little problem with turning on those he feels are bringing the Serpentine to ruin or have simply become weak, ridiculing Slithraa, turning his back on Skales, accepting Garmadon's defeat, and abandoning his people. description

Rank: Soldier

Mezmo is one of the more strategic-minded Hypnobrai soldiers who does not parade orders when he disagrees with them.

Mezmo is not happy with their general being under Lloyd’s control and his complaints are loud and frequent. He comes from a long line of Hypnobrai warriors, so he feels he has a lot to live up to, and the right to more power, and he can’t advance fast enough.[link unavailable]






Ninjago: Masters of Spinjitzu

Season 1: Rise of the Snakes

Season 2: Legacy of the Green Ninja

Season 4: Tournament of Elements

Season 11: Secrets of the Forbidden Spinjitzu

Season 12: Prime Empire

Season 15: Crystalized

Video games


Mezmo's name is a pun on of the word "mesmerized," which means to hold the attention of someone. This is a reference to how the Hypnobrai have the power to hypnotize.


  • He was part of the Treble Makers, a band designed by Pythor to win the talent show in "The Royal Blacksmiths."
  • He was mislabeled as appearing in 9444 Cole's Tread Assault in the January/February 2012 issue of LEGO Club magazine.
  • Ironically, he is one of the most common Serpentine in the show, but among the rarest in the sets, only appearing 9555 Mezmo in his original form.
  • He appears in the front cover of Shadow of Ronin.
  • Every time another character usurped power from the current leader of the Hypnobrai, Mezmo would always support said person, helping Skales, assisting Garmadon, and once again cheering for Skales upon his coronation as the Snake King.
    • However, the Character Encyclopedia states that he's always happy to carry out Skales's orders on page 121 and also says that he won't follow orders if he doesn't agree with them on page 154.
  • Mezmo serves as a generic enemy in some levels of LEGO Ninjago: Wu-Cru.
  • Mezmo is voiced by Michael Adamthwaite, who also voiced another Serpentine, Fang-Suei.
  • When Mezmo appears in Season 11, his arms have been recolored blue.
  • Mezmo’s 2012 minifigure, much like Lizaru is exclusive to his booster pack.



Promotional media

Design variants

In Ninjago: Masters of Spinjitzu

Season 15: Crystalized

In other media



Master Wu · Lloyd · Kai · Jay · Cole · Zane
Allies: Nya · P.I.X.A.L. · Misako · Dareth · Sally · Skylor · Cyrus Borg · Falcon
Former members: Master Garmadon


Generals: Samukai · Kruncha · Nuckal · Wyplash
Warriors: Frakjaw · Chopov · Krazi · Bonezai
Other: Skeleton figurehead


Anacondrai: Pythor · Anacondrai generals (Arcturus) · Pythor's mother
Hypnobrai: Skales · Slithraa · Mezmo · Rattla · Selma · Skales Jr.
Fangpyre: Fangtom · Fangdam · Fang-Suei · Snappa
Constrictai: Skalidor · Bytar · Chokun · Snike
Venomari: Acidicus · Lizaru · Spitta · Lasha · Zoltar · Snake villain
Vipers: Golden Vipers · Sly Vipers · Red Vipers · Hypno Vipers · Toxic Vipers · Translucent Blue Viper · Translucent Purple Vipers · Translucent Orange Viper
Other: Great Devourer · Anacondrai serpent


Dan Vaapit · Fred Finely · Gayle Gossip · News Reporter · Vinny Folson
Former members: Benny


Leader: Captain Soto
First Mate · No-Eyed Pete

Evil ninja

Bizarro Cole · Bizarro Jay · Bizarro Kai · Bizarro Zane

Wu's Academy students

Brad Tudabone · Finn · Gene · Marla · Sally · Tommy

Stone Army

Creator: The Overlord
Leader: General Kozu
Giant Stone Warrior · Stone Warriors · Stone Swordsmen · Stone Scouts

Nindroid Army

Leader: General Cryptor
Nindroid Warriors · Nindroid Drones · Min-Droid

Anacondrai Cultists

Leader: Master Chen
Clouse · Zugu · Eyezor · Kapau · Chope · Sleven · Krait
Former members: Skylor

Elemental Masters

Current Elemental Masters: Ash · Bolobo · Chamille · Gravis · Griffin Turner · Jacob Pevsner · Karlof · Neuro · Mr. Pale · Shade · Skylor · Tox
Previous Elemental Masters: Master of Amber · Cole's grandfather · Griffin Turner's grandparent · Jay's mother · Lilly · Master of Gravity · Master of Ice · Unknown Elemental Master · Master of Shadow · Master of Sound · Maya · Ray · Skylor's mother

Ghost Warriors

Leader: The Preeminent
General: Morro
Ghost Masters: Soul Archer · Bansha · Ghoultar · Wrayth
Ghost Ninja: Attila · Hackler · Ming · Spyder · Howla · Yokai · Wooo
Ghost Warriors: Cowler · Cyrus · Ghurka · Karenn · Pitch · Pyrrhus · Wail
Other: Skreemers

Yang's students

Leader: Master Yang
Chris · Martin · "Chuck"

Sky Pirates

Leader: Nadakhan
Flintlocke · Delara · Dogshank · Doubloon · Monkey Wretch · Clancee · Bucko · Cyren
Other: Skeleton figurehead
Former members: Sqiffy

Ninjago City Police

Leader: Police Commissioner
Butchie · Coast Guard · Hounddog McBrag · Jimmy · Joe · Night Watchman · Noonan · O'Doyle · Police Officer · Prison guards · Simon · Tommy


Khanjikhan · Nadakhan · Nadakhan's mother

Shadow Army

Leader: Clouse


Leaders: Acronix · Krux
Supreme Commander Machia · Commander Raggmunk · Commander Blunck · Slackjaw · Rivett · Tannin · Vermin
Other: Buffmillion

Sons of Garmadon

Leaders: Lord Garmadon · Harumi
Generals: Killow · Mr. E · Ultra Violet
Luke Cunningham · Chopper Maroon · Mohawk · Skip Vicious · Nails · Sawyer · Scooter · Buffer · "Snake Jaguar"
Other: Colossus

Royal Family of Ninjago

Emperor of Ninjago · Empress of Ninjago · Princess Harumi · Hutchins · Royal Guards

Dragon Hunters

Leader: Faith
Jet Jack · Daddy No Legs · Muzzle · Chew Toy · Arkade · Skullbreaker · Stalwart Dangerbuff · Otto Pilot · Talon · Nitro · "Rocky Dangerbuff" · "Dangerbuff Junior"
Former members: Iron Baron


Mystake · The Omega

Pyro Vipers

Leader: Aspheera
Char · Pyro Destroyers · Pyro Slayers · Pyro Whippers
Former members: Mambo V · Mambo's advisor

Ninjago City Council

Leader: Ulysses Trustable
Dwayne · Andrea Thomson · May Robsen
Former members: Ninjago City's former mayor

Blizzard Samurai

Leader: Ice Emperor
General Vex
Blizzard Warriors: Grimfax
Blizzard Sword Masters · Blizzard Archers

Explorer's Club

Leader: Cecil Putnam
Clutch Powers · Percy Shippelton · Security guards · Smythe · Underhill
Former members: Dwayne · Misako


Leader: Sammy
Antonia · Jonesy · Leroy · Nelson · Spokes · Ten-Speed
Former members: Knuckles


Leader: Formling Leader
Akita · Kataru · Vex

Ice Fishers

Leader: Sorla
Uthaug · Boma


Creator: Milton Dyer
Ballistic Missiles: Anthony Brutinelli
Chrome Domes: Hyper-Sonic
Admin Droid · Adventure-Ready Woman · Avatar Pink Zane · Gamer Geek · Newbie Gamer · Okino · Racer Seven · Scott · Shifty · Successful Samurai
League of Jay: Beta Jay 137 · Dee-Jay 81 · Jaybird 64 · Jaywalkin 238

Unagami's army

Leader: Unagami
Red Visors: Red 27 · Red 29
Avatar Harumi · Sushimi · Hostess · Sushimi's sushi chefs
Allies: The Mechanic · Henchmen · Ultra Violet · Captain Soto · Richie · Ritchie

Whack Rats

Leader: Atta the Ratta
Richie · Ritchie


Leader: Skull Sorcerer
Hazza D'ur

Sky Folk

Leaders: King Vangelis (formerly) · Queen Vania
Army of Shintaro: Hailmar


Leader: Queen Murtessa
Manko · Meeha · Mid · Moe · Mood · Mudd · Murt · Murt Snr · Munce Sentries


Leader: Chancellor Gulch
Gleck · Gliff · Groko · Garpo · Ginkle · Mr. Wise


Fungus · Korgran · Plundar


Leader: Chief Mammatus
PoulErik · Rumble Keepers · Thunder Keepers

Mary Louise's crew

Leader: Captain
Collins · Kwon · Mariano


Leader: King Benthomaar
Glutinous · Nyad
Maaray Guards: Gripe
Former leaders: King Trimaar · King Kalmaar

Warriors of Felis

Leader: Nineko

Order of Felis

Leader: Komala
Dillon · Adara


Leader: Tanabrax
Bunch · Moody


Hana · Obachan · Shin · Kenji · Uchida · Mrs. Uchida · Old Man Jiro

Snake warriors (non-canon)

Boa Destructor · Cobra Mechanic · Python Dynamite · Viper Flyer · Sneaky Snake

Red Crows

Leader: Mogra
Killow · Ultra Violet · Francis

Two Moon Village

Kenzo · Renzo · Saeko · Min

Vengestone army

Leader: Crystal King
Council of the Crystal King: Kabuki Mask · Mister F · Aspheera · Vangelis · Pythor · The Mechanic
Vengestone Warriors · Vengestone Brutes · Vengestone Guards

New Ninja

Leader: Teal Ninja
Fuchsia Ninja · Orange Ninja · Pink Ninja · Yellow Ninja

Other classifications

Ghosts · Humans · Nindroids

Other groups/sub-groups

Elemental Alliance · Fast Chickens · Kryptarium inmates (The Needles) · Ninja Replacements · The Resistance · The Resistance (Crystalized) · The Resistance (Never-Realm) · The Royal Blacksmiths · Sons of the First Spinjitzu Master · Spin Harmony · Stranded ninja · Time Twins · Treble Makers


Cole's family · Jay's family · Kai and Nya's family · Lloyd's family · Royal Family of Djinjago · Royal Family of Merlopia · Royal Family of Ninjago · Royal Family of Shintaro · Skales' family · Skylor's family · Zane's family

In-universe fictional characters

Britts Subskian · Commander Kiflin · Jack the Rabbit · Imperial Sludge · Master Whoosh (non-canon)


Barracudox · Bob Rattlebottom · Cardinsto · Carridi · Cece · Christina · Chuck · Claire · Diaman · Eileen · Flerry McFloyster · Gahrann the Dreamer · Genn · Golden Ninja · Green Screen Gary · Hai · Hibiki · Insect Master · Ivy Walker · Jeremiah Bobblestein · Jesper · Kaito · Kirchonn the Invincible · Lar · Larry · Lloyd Garmadon (The LEGO Movie) · Mask of Malice · Mei · Moe · Mr. Righty Tighty · Neido · Nobu · Phantom Ninja · Quartet of Villains · Rachel Sparrow · Robot Manager · Ronin's daughter · Ronin's wife · Samurai warrior · Scott Digato · Seliel · Seliel's father · Six-Armed Warriors · Snake villain · Spinjago Citizen · Suzie Wheeler · Time Ninja · Tito · Wishmaster · Zoltar
Ninjago Magazine: Buffer · Nitro · Sawyer · Scooter · Talon · Mr. Wise


Adam · Balee · Bears (Kuma) · Beavers · Colossus · Craglings · Elemental Cobras · Fire Fang · Fluffy · Geotomic Rock Monsters · Guide Parrot · Ice Behemoth · Ice bird · Ice Serpent · Leviathans · Monster sushi · Mud monsters · Nimbus · Pebbles · Rodrigo · Ross · Sir Chomps-A-Lot · Snickers · Stone Hawk · The Chroma · Treehorn queen · Wojira · Wu's chicken · Wu's dog · Yeti (Krag) · Zane's Mino
Dragons: Blue Dragon · Boreal · Chompy · Crystal beasts · Dragon keeper · Empire Dragon · Fire Dragon (Core) · Fire Dragon (Realm of Oni and Dragons) · Flame · Firstbourne · Ghost Dragons · Grief-Bringer · Ice Dragon (Realm of Oni and Dragons) · Pet dragon · Rocky · Shard · Slab · Stormbringer · Stormbringer's baby · Thunder Dragon · Ultra Dragon · Wind Dragon · Wisp · YinYang Dragon (Light Dragon · Shadow Dragon)

Unseen characters

Dr. Berkman · Grumbmiller · Milton Dyer's father · Sybex Tribe · Quanish the Elder · Trylle · Dr. Yost

Ninjago City residents

Barry · Benny · Brayden Nelson · The Fold · Fugi-Dove's brother · Hayley Wolfe · Jake · Jay Vincent · Jeffy · Joshua Deck · Lachlan Jansen · Michael Kramer · Mrs. Dyer · Patty Keys · Phil · Postman · Roise · Rufus McCallister · Vlad Tutu ·


Announcer · Ayla · Bank Boss · Bob the Intern · Cathy · Circus Clown · Clancee's mother · Cliff Gordon · Construction workers · Cook · Cragger · Dr. Julien · Echo Zane · Ed · Edna · Egon the Extraordinary · First Spinjitzu Master · Fenwick · Fugi-Dove · Grimfax's advisor · Hageman · Hageman Brothers · Harumi's father · Harumi's mother · Jamanakai Villagers · Johnny · Korgran's father · Laval · Lou · Lumberjacks · Magician · Mascots · Mina · Miss Demeanor · Monks · Motorcycle Mechanic · Museum Curator · Nindroid Sentries · Ninjago soldiers · Nobu · Reflectra · Repo Man · Restaurant Owner · Rice farmers · Ronin · Sage · Santa Claus · Sally's parents · Security guards (Borg Industries) · Security guards (Ninjago City) · Sentry General · Shezada · Ship Captain · Skeleton · Stone Guardians · Tour Guide · Twitchy Tim · Warden Noble
Robots: Auto · Juggernaut · Robo Usher 3000 ·Tai-D