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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).

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 and a purple infinity symbol-shaped mask with 8 points, 4 on each side. The points are apparently "eyelashes" (confirmed in the Numberblocks Crafts video on how to make Eight out of Playdoh) even though he is male.

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

Episode Appearances

Total number of appearances: 78 + 1 (Incl. pictures)



He is an 8 with 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 "Dimentionator" 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.


  • 8's way of being a spider in his debut episode is a reference to Spider-Man.
  • 8'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 2's glasses might be his real eyes, it is also possible that his mask is his real eyes.
  • 8 is the only Numberblock greater than 5 who made more than 3 arrangements in the first series.
  • 8 had a continuous error where he had 4 normal limbs, especially whenever 9 sneezes. The episodes 8 had the error are below.
  • 8 makes the most 3D shapes out of all the primary Numberblocks.
  • Starting from Series 2, 8 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, 8 wasn't Octoblock until he got tickled by a radioactive octopus.
  • 8 is capable of generating the Octo Signal with his Numberling.
    • Octonaughty can generate signals too.
  • 8 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).


  • "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)!"
  • "Octoblocks assemble!"


Octomino Gallery