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"I don't think I've seen Eight (character) before!"Four
This page is about the character(s). For the episode, see Eight (episode).

Octoblock, run! 1, 2, 3, 4, 5, 6, 7, 8, run!

— Eight, Eight (episode)

Eight, or 8, is a character who appeared in Numberblocks. He is well known for his alter-ego, Octoblock.

8 first appears in the episode with the same name.

He is voiced by Marcel McCalla.


8 is the Numberblock made up of 8 magenta blocks, with 8 octopus-like limbs which he uses six for arms and two for legs. (mostly used as 2x4) He wears a purple infinity symbol-shaped mask with 8 points, 4 on each side.

Starting at Season 8's "Now in 3D", whenever Eight transforms into a cube, he gains a purple cube symbol above his eyes.

Episode Appearances

Total number of appearances: 82 + 1 (Incl. pictures)



As Octonaughty, he has green tentacles and a green mask. He has small pupils and big teeth. As a cube, he has a green cube symbol above his eyes. He has a high-pitched voice and has a very naughty personality. In "Octoblock to the Rescue!", Octoblock and Octonaughty come face to face for the first time after 4 Terrible Twos create Octonaughty. However, after 4 more Octoblocks help overpower Octonaughty, the naughty Numberblock attempts an escape route, but accidentally falls into a custard pie. In "Now in 3D", Octonaughty returns and uses a "Dimensionator" to turn into a cube and use his powers to turn several other Numberblocks into 3D shapes. Twenty-Seven manages to defeat Octonaughty with the help of her factor groups, as well as Octoblock and his 2 Fours. After Octonaughty attempts to become a cube again, the machine malfunctions, turns him flat, and then blasts the villain away, who vows to catch Octoblock next time.


Octoblock Rearrange! Eight is seen vertical, but he is mostly 2x4. He can be horizontal, 4x2, 2L+3x2, a square with a hole and other shapes. He is the first Numberblock to make 3D shapes. He also has the most 3D arrangements out of any Numberblock.

2D (102/2,725)

Independent (100)
Component Only (2)

Separated (2)

3D (6)


  • Eight's way of being a spider in his debut episode could possibly be a reference to Spider-Man.
  • Eight's catchphrase is "Octoblock, (command), 1-2-3-4-5-6-7-8, (said command)!"
    • Octonaughty's catchphrase is "Octonaughty, (command), 8-7-6-5-4-3-2-1, (said command)!"
    • Just like Two's glasses might be his real eyes, it is possible that Eight's mask is part of his real eyes.
  • Eight is the only Numberblock greater than 5 who made more than 3 arrangements in the first series.
  • Eight had a continuous error where he had 4 normal limbs, especially whenever 9 sneezes. The episodes 8 had the error are below.
  • Eight is the only cube number to be male.
  • Eight makes the most 3D shapes out of all the primary Numberblocks.
  • Starting from Series 2, Eight has a lighter-coloured mask and slightly smaller eyes. However, his old appearance is still seen in the intro and even on his player card during The Team Factor.
  • According to Now We Are Six to Ten, Eight wasn't Octoblock until he got tickled by a radioactive octopus.
  • Eight is capable of generating the Octo Signal with his Numberling.
    • Octonaughty can generate signals too, but only did that in Now in 3D.
  • Eight is the first Numberblock to make diagonal shapes (his "Bend" Form (zigzag) and his "Pop" form (which is just the donut, or square-with-hole, but diagonal).
  • The website's description of Eight is: "Numberblock Eight is known by his superhero name: Octoblock. He’s got eight arms (or are they legs?) and when he needs to run fast, swim a long way, climb up high, knit in a hurry or more he changes shape to activate a unique special power each time: Octoblock Run! 1-2-3-4-5-6-7-8 Run!"[3]


  • "Octoblock, (command), 1-2-3-4-5-6-7-8, (said command)!"
  • "Have no fear!/Never fear! Octoblock is here!"
  • "1, 2, 3, 4, 5, 6, 7, 8! 8 arms, or are they legs? Whatever they are, I like them! I am 8, and this is great!"
  • (as Octonaughty) "Octonaughty, (command), 8-7-6-5-4-3-2-1, (said command)!"
  • (as Octonaughty) “Now in 3D!”
  • (as Octonaughty) “The Dimensionator will make me a super powerful cube again!”
  • "Octoblocks assemble!"
  • "Does anyone want to play seesaw?"
  • "Octocube, 2 by 2 by 2!"


Octomino Gallery