|“Did I already tell you that really-I mean-I think I have pretty good hair, but you have like-really good hair.”|
|— Nya to Lloyd, "LEGO NINJAGO Movie Outtakes and Bloopers"|
Bolded text indicates a character has appeared with the hair piece in a physical LEGO set. The debut character listed will be whichever character the part originally appeared on, including non-Ninjago characters. The images used will generally be the color of the hairpiece used most often on characters. In the case that the color used most often in the TV series has not been released physically, the part's original physically-released color will most likely be shown, though there are other exceptions as well.
|Image||Part ID||Characters used on||Debut character|
|11605||Ice Fishers member||Joanna|
|13784mo||Elemental Master of Shadow, Harumi (child)||Pretzel Girl|
|15705||Kai (pre-S8), Bizarro Kai||Kai|
|17346||Wu and Garmadon's mother (The LEGO Ninjago Movie), Harumi, Avatar Harumi||Spooky Girl|
|22411||Nadakhan, Ultra Violet, Daddy No Legs, Richie, Murt, Moe, PoulErik||Macy Halbert|
|24080||Ice Fishers member, Vania, old woman (The Ascent)||Anna (Disney)|
|29397||Avatars||Harley Quinn (DC Super Hero Girls)|
|41614||Munce (modified)||Elsa (Minifigure)|
|53981||Kai (early design)||Exo Force characters|
|53982||Luke Cunningham||Exo Force characters|
|Garmadon (Lord), Clouse (briefly in "Chen's New Chair"), Dareth (briefly in Shadow of Ronin)||Dr. Inferno|
|93563||Member of the Postman's group, Eyezor, GPL Tech scientist, Mohawk, Jet Jack and other Dragon Hunters, Legacy Nuckal, Avatar Lloyd||Punk Rocker|
|95326||P.I.X.A.L. (pre-S8), Tox (appears physically in non-Ninjago sets); both without clip||Cave Woman|
|15677||Misako's expedition member||Livi|
|15439||Police Commissioner (modified), Flintlocke, Nya (undercover), Zane (undercover), Avatar Cole (set)||Sheriff Not-A-Robot|
|93069||Wu, First Spinjitzu Master (statue), Yang (statue; TV series only), Khanjikhan, Krux (as Dr. Saunders; no middle section), training dummy (set), monk (The Mask of Deception; no middle section), unknown master (sticker in 70505 Temple of Light)||Wu|
- Most non-elderly humans have black eyebrows regardless of their hair color. Notable exceptions are Skylor as well as Jay, Kai, and Lloyd from Season 8 onward.
- The Exo Force appeared on Kai in his blacksmith form in an early animation demo for the pilot episodes, previously released on Tommy Andreasen's YouTube channel but currently unavailable; in an animated blooper reel released on LEGO's YouTube channel for the pilot episodes; and in LEGO Battles: Ninjago, or at least in the icon for blacksmith Kai.
- Despite the ninja's hair being shown since the beginning of the TV series, their hairpieces were not included in the sets until 2014 with the Rebooted wave as part of their Techno gi designs. Before that, Jay, Cole, and Zane's hairpieces existed in other LEGO themes, while both of Lloyd's existed but not in blond, and Kai's did not exist at all, being designed by WILFilm for the show.
- All of their current hair pieces have been included in The LEGO Ninjago Movie sets. For the sets based on the TV show, all hairpieces have been released, with Zane's titanium hair being released in 2021.
- As of the third Legacy wave, all of the ninja's current hair pieces have been included in sets outside of The LEGO Ninjago Movie thanks to their Legacy (sleeveless) designs, and Kai and Jay have had different colored versions in their Avatar outfits.
- Due to being the first LEGO hair piece created and thus having a simple design, the original Town hairstyle appears slightly differently in the TV series than it does in physical form.
- For unknown reasons, the Anakin hairpiece appears to have two variations in the show, at least during WILFilm's run. The version on Lloyd, Morro possessing Lloyd, and The Royal Blacksmiths member (DOTD onward) appears slightly differently from the physical version, having the front part curved more outward, as well as a few branches outward in the back. The other version more closely resembles the physical version, appearing on Garmadon, the Announcer, Dan Hageman, and, in the WildBrain animation, Clutch Powers.
- In the TV series, the color of Jay's original hair ranges from orange to reddish-brown, often depending on lighting, while it was orange in the sets. His hair from seasons 8 through 10 was dark brown, matching the color of his movie hairpiece, but it changed back to a lighter reddish-brown color starting in Season 11, while the physical version representing it remained dark brown.
- In certain instances of headgear (Nya with her Samurai X suit helmet, Zane's noodle factory uniform hat, the ninja wearing Vermillion helmets in "Out of the Fire and Into the Boiling Sea"), a character's hair is not visible even if it would normally be visible from the same angles. This is because the hair would not fit under the 3D model of the headgear.
- The Obi-Wan hair exists in two forms in the show, with one appearing identical to the physical version, and the other appearing somewhat altered. In the altered version, the front swoop is less pronounced, and the sides, which are father back on the original version, continue closer to the front of the head. Besides Lou and Cyrus Borg at various points (explained below) and Kai in the blooper reel, all characters use the altered version.
- The altered version did not appear in seasons 8 to 10 (nor the Monastery Murals that picture Cyrus Borg), presumably as a result of Wil Film's animation update in some way. Cyrus Borg and the recurring background character design (the appearance used on one of the talent show judges) switched to the original design of the hair piece, while Noble switched to the Josh Thunder hair. The altered design of the Obi-Wan hair returned in the WildBrain animation, with Cyrus Borg using it again in the twelfth season, though Noble kept the Josh Thunder hair. The unaltered version was also used for Cyrus' brief hologram appearance in Shadow of Ronin, as the game used the models from the sets rather than the show, which can be seen in the game's depiction of Kai's hair as well.
- Lou has most often used one of the two versions of the Obi-Wan hair. He has the original version in most of his appearances before "Day of the Departed", but in Season 7, he has the altered version. He again has the original version in Ultra Violet's poster in The Absolute Worst and in Lilly's necklace in Season 13.
- In the show, hair is attached to the head as it is in real life, but in various media outside the TV series it operates as a separate object:
- Zane's hair has been delayed or unreleased in the sets the most times. First, none of the ninja had hair in the sets as mentioned above; later, he was titanium starting in Tournament of Elements but wasn't released with his titanium hair until the Day of the Departed wave; and his post-movie titanium hair will be physically released in 2021.
- A few sets have included both the headgear and hair for some of the characters: 70738 Final Flight of Destiny's Bounty, 853687 LEGO NINJAGO Accessory Set, 70626 Dawn of Iron Doom, and 70627 Dragon's Forge.
- Apart from the ninja and Ronin, any character with a half-mask has a hairpiece or hat that allows the half-mask to be alternatively placed backward on the character. Some examples are Nadakhan and Ultra Violet.
- There are other mustache designs in the show that do not appear to be based on any physical pieces. These are seen on Jay's disguise in "Misfortune Rising", the unknown Djinn King statue in "The Way Back," and Cole as "Rocky Dangerbuff" ("The Oni and the Dragon" and "Iron & Stone" through "How to Build a Dragon").
- There are times when a character's hair will appear slightly flattened compared to its normal design because the character has worn or is about to wear some other type of headgear. Some examples are Jay's hair before he puts on a wig in "The Snake King" and during his first time talking to Nadakhan for the first time in "Misfortune Rising", Ed when saying goodbye to Jay toward the beginning of "Operation Land Ho!" and Jimmy when he grabs his hat after the ninja run to Kryptarium Prison in "Questing for Quests".
- In "Misfortune Rising," Nya shakes her hair and it moves around her head on from the top axis, referencing the functionality of a real minifigure. This, in turn, is likely a reference to the very similar moment from The LEGO Movie in which Emmet first sees Wyldstyle.
- In "The Way Back", Jay donned his eyepatch and it appeared over his hair as a separate physical object. By the next shot, it was underneath his hair, now part of his face printing.
- In some cases, certain hairpieces are treated interchangeably.
- Characters such as Lou and Noble have both the Obi-Wan and Josh Thunder hairpieces at various points throughout the show (though Noble only used the altered version of the Obi-Wan hair), while Cyrus Borg, who always has the altered version of the Obi-Wan hair in the show, is pictured with the Josh Thunder hair in his LEGO.com CGI image.
- Rufus MacAllister and Tommy both have the Will Turner hair in the show, but Tommy has the Kanan Jarrus (also Clouse and Jay Vincent) hair in his CGI image and Rufus has the Kanan Jarrus hair in his minifigure form.
- Despite being titanium, Zane's hair can be seen contort in shape when he takes his mask on or off. However, this can be seen as an animation technique rather than a detail with any in-universe significance.
- Tommy Andreasen stated, "All it takes to change a head of hair is a brisk breeze." However, the ninja have been in situations such as when they rode their Elemental Dragons without their masks in "Winds of Change", but their hair did not change. However, hair has been shown elasticity such as when Wu pulled Kai's hair in "Never Trust a Snake".
- Kai's post-movie hair in the TV series is shorter than the movie version, as Tommy Andreasen thought the movie hair was excessive.
- This means neither of Kai's TV series hairstyles have been completely accurate to the ones seen on his minifigures.
- His hair-headband combo in The Island is the same height as the set version because it is based on a new, slightly different piece.
- Unagami and Okino's hair is made of a special type of plastic, which also has the properties of soft plastic, so it is slightly flexible, but at the same time it can break and does not have much flexibility.
- The First Spinjitzu Master has a three-dimensional braid of white hair on the back of the head. This piece has never been released and only he uses it, because all other characters with a braid (Soto, Wu from Season 11 onward, Vex's human form, and Blizzard Sword Masters) have it printed on the back of their heads.
- Wu's beard appears differently in the show than in the sets, because it swings when moving and is not bent to the side but falls straight down.
- Naturally, the neck attachment section of the beard is not present on Wu in the show, but it can be seen on his silhouette at the beginning of "Rise of the Snakes".
- Wu's beard takes the shape of the physical version in "Can of Worms", when Kai is poisoned by Venomari venom, later in the Season 7 intro and the intro for the first half of Season 2.
- Hair 40240 is very common for children in Ninjago, as Wu, Garmadon and Lloyd had this hairstyle as children. Jake and some of Darkley's students also have it.
- The Anakin hair has the dot on the top like the physical piece in the WildBrain version but not the Wil Film version.
- Some Whack Rats have hair pieces that have never been released.
- Some hair pieces originally created for LEGO Ninjago were later used by characters in other themes. For example, Lloyd's current hair was used by Harry Potter, Kai's current hair was used various possessed characters from LEGO Hidden Side, Cole's current hair (both ordinary and bun) was used by characters in LEGO Chinese New Year, Kai's pre-S8 hair was used by Noah in LEGO Friends, and Wu's beard was used by the Ocean King and Evil Wizard from LEGO Minifigures and by Dragon Wizard from LEGO Castle.
- On one of the stickers in the 71741 Ninjago City Gardens, the Zane, Jay, and Nya are pictured with their post-movie hair, while Cole and Lloyd are pictured with their original hair.
- In the 70505 Temple of Light, there are four unknown masters on the sticker, one of which uses the same beard piece as Wu, while the other three use never-released beard pieces.
- It's possible Josh Thunder was not the first character to use this hair piece, but according to Brickset, the set he appeared in was the earliest set to be released which included this hair piece, though not by more than a month or two.