Numberblocks Wiki
Numberblocks Wiki

The Terrible Twos

The Three Threes

The Three Little Pigs and the Big Bad Square

This is a list of alter-egos (heroes or villains, or even a SUPERVILLAIN, or a SUPERHERO) in the Learningblocks series.


Magic E (Superhero)

Magic E

Magic E is E wearing a top hat and black ninja clothes. Unlike Silent E, he can actually TALK. Apparently, his magic hat "can make a vowel make a different sound", particularly, make the Alphablocks "say their name". An example is: Tune.

Silent E (Hero)

He only appears in three Alphablocks episodes: Alphablocks, Bee, and Zzzzz. He has the same appearance as Magic E, with the lack of the top hat.

Plusman (Anti-Hero)


Plusman only appears in Plusman. He is similar to X, but he is red and orange instead of blue and yellow. Also, his letter top has a plus sign instead of an X. He can put two words together to make a compound word.


Square Root Squads

The One One (Hero)

In Square Club The One One existed only. The One One helped Square Club.

The Terrible Twos (Villains)

Two Numberblocks Twos who are divided from Four, and appear in the episode The Terrible Twos. Their mask colors are blue and purple. They love to tickle Numberblocks, who laugh (or possibly sneeze if it were a 9) and then get scared by the Twos. They get so scared they split into Ones. They are the product when Four cannot even decide and is the only actual square root who is not named "The (X) (X)s".

In later episodes, the two have seemingly became more drastic in the mayhem they make, going as far as to forcefully divide Numberblocks, and gaining the ability to become Octonaughty.

The Three Threes (Hero?)

Three Numberblocks Threes who are divided from Nine, and appear in the episode The Three Threes. They have three different mustaches and are acrobatic. One time they help One open a jar of honey. However, in Square Club, they totally didn’t help the others but were just juggling balls. They also made an cameo in Mirror, Mirror (does not shown mustaches) and Divide and Drive.

The Four Fours (Hero)

Four Numberblocks Fours who are a result of Sixteen splitting in half into two Eights then into the Four Fours. They all have the same Barbershop hat with the green ribbon wrapped around it. They appeared in Square Club (But at the last notice was scared by the balls they were holding) then they try to call the Three Threes, but they totally didn’t help them.They also made a cameo in Divide and Drive.

The Five Fives (Hero)

Five Numberblocks Fives who are originally subtracted from 6-10, and are divided from Twenty-Five. They appear in Five and Friends. They appeared again in Hidden Talents when splitting from Twenty-Five.

The Six Sixes (Hero)

The six Sixes who are divided from Thirty-Six, each have different placed faces on each of their blocks. They appear in Puzzle Square.

Secret Identities

The Big Bad Square (Villain)

Four's wolf alter-ego, who appears in the episode Three Little Pigs. In this episode, Four blows the pigs' houses, and Numberblocks to split them into Ones.

Octoblock (Hero)

Octoblock is the result of Eight (character) being tickled by a radioactive octopus. His catchphrase is 'Octoblock, (command)! 1, 2, 3, 4, 5, 6, 7, 8, (command)! He is almost always in this form, with an exception being in a part of Octoblock to the Rescue! and in some glitches, examples include (but not limited to), Nine (episode) and Fun Times One Times Table. See below for his villain form Octonaughty.

Octonaughty (Villain)

Octonaughty is the result of the Terrible Twos duplicating themselves and then combining. He is Octoblock's villain counterpart and his catchphrase is "Octonaughty, (command)! 8, 7, 6, 5, 4, 3, 2, 1, (said command)!". Octonaughty has a higher voice than Octoblock.

He appears in Season 3 in Octoblock to the Rescue!, not reappearing again until Ten's Top Ten, and then Now in 3D. He is somewhat more crazy in Now in 3D, as shown when he flails his tentacles and laughs after disassembling Twenty-Seven. He's also shown to be somewhat incompetent, making the Dimension-ator to become a powerful cube... despite it being redundant, at least until it got broken.

Step Squads (Hero)

Step Squads who are divided from the triangular numberblocks, the first is Fifteen. Fifteen can be divided into One, Two, Three, Four and Five. (All the characters from Season 1.)

  • 15: 1+2+3+4+5

Then Fifteen tells the other triangular numberblocks (1, 3, 6 and 10) that they can also make Step Squads.

  • 1: 1
  • 3: 1+2
  • 6: 1+2+3
  • 10: 1+2+3+4

The Step Squads can help other Numberblocks or other things and animals from accident.

All numbers of the form (where n is an integer) are step squads. (The first few are 1, 3, 6, 10, 15, 21, 28, 36, 45, 55, 66...)

  • 15,21, 28, 36, 45 and 55 are the only numberblocks appeared in the show which have a permanent step mask. The smaller steps 1, 3, 6, 10 don't have one, as well as Three Hundred (300 is the 24th step).

Appear episode: Step Squads

The Terrible Twenties (Villain)

The Terrible Twenties are Forty's version of The Terrible Twos. They appeared in Land of the Giants when Forty didn't know which way to go after Oblongy.

Super Octoblock (Superhero)

Eighty's alter-ego. His catchphrase is 'Octoblocks assemble (splits into 10 Eights, reassembles, combines to make Eighty again)! (Transformed creature, command)!

Double Eleven Football Teams

The Double Eleven Football Teams are special forms of Eleven when Twenty-Two splits in half, as seen in Twenty-One and On and How Rectangly. One of them is red while the other is blue, representing the red team and blue team in football, and after that they can both split into eleven ones, who are also colored red and blue, respectively.

Double Thirteen

Double Thirteen

Double Thirteen are Twenty-Six’s alter egos. While they really are used to find hidden numbers in a Numberblock, they are more or less are like Thirteen in terms of personality, as shown in Club Picnic.

Super Cubes (Hero)

Captain Hexbeard (Captain)

Captain Hexbeard is Twenty-One's alter-ego that appeared in The Treasure of Hexagon Island. She acts as a captain and makes the Numberblocks work together to fix the Magic Mirror.

Alphablocks characters

Main Characters

A, B, C, D, E, F, G, H, I, J, K, L, M, N, O, P, Q, R, S, T, U, V, W, X, Y, Z


Magic E, Plusman