Four, or 4, is the Numberblock made up of 4 green blocks. His favorite shape to be is a square. 9 is like a brother to him because 9 also likes to be a square.

4 first appeared in the episode with the same name.

He is voiced by Marcel McCalla.


Four... is basically just a normal square guy. He loves squares but he has a fear of round things; thus, he does not like to play ball games. Four is very strong, and possibly very heavy; he's also sometimes can't decide, and thus splits up into the Terrible Twos.


Total number of appearances: 77


Big Bad Square

The Big Bad Square is the alter-ego of Numberblock Four that appears in the episode "Three Little Pigs".

Costume Appearance

The Big Bad Square's costume is a wolf disguise consisting of ears, a nose, and a tail.


The Big Bad Square's role is the same as the Big Bad Wolf in the original Three Little Pigs story. He comes up to each house saying "Little pig, let me in!" Whenever a Numberblock 1, 2, or 3, denies by the hair on one's chin, Four says, "And I'll huff and I'll puff and I'll blow your house in!" So he blows down the houses and the Numberblocks out of the house.

As Three wonders where the pigs will live now, Four shows the pigs his house, which is green with four rooms, four square windows, four trees, and a number 4 on the door. The pigs now live with the Big Bad Square.

The Terrible Twos

The Terrible Twos are the evil twos; one wears a purple mask and the other wears a blue mask. They appear in The Terrible Twos, Peekaboo, Octoblock to the Rescue!, Mirror, Mirror, Square Club, and Terrible Twosday.


  • Counting Sheep and Fifty are the only episodes in which 4 does not speak.
  • During the whole first part of Season 1, 4 is the only composite (and square) Numberblock.
  • 4 has a British Westcountry accent.
  • 4 makes all his arrangements throughout the series.
  • 4 has 5 arrangements that resemble Tetris bricks (tetrominoes)
  • Four has a pet.
  • As shown in Five, Five and Friends, and Flatland, Four doesn't 100% hate round things, he just fears spheres.
  • Four is one episode short of having the same amount of appearances as Three.



Numberblocks characters

Discovered Numberblocks

Zero, One, Two, Three, Four, Five, Six, Seven, Eight, Nine, Ten, Eleven, Twelve, Thirteen, Fourteen, Fifteen, Sixteen, Seventeen, Eighteen, Nineteen, Twenty, Twenty-One, Twenty-Two, Twenty-Five, Thirty, Forty, Fifty, Sixty, Seventy, Eighty, Ninety, One Hundred, One Thousand, Ten Thousand, One Hundred Thousand, One Million


Big Bad Square, The Terrible Twos, Octoblock, The Three Threes, Octonaughty, Step Squad, The Four Fours

Other Numberblocks

Twenty-Three, Twenty-Four, Thirty-Five, Thirty-Six, Forty-Two, Forty-Nine, Sixty-Four, Ninety-Nine, Two Hundred, Three Hundred

Irrational Numberblocks



Flapjack Snaffler, Blockzilla, Big Tum


Fluffies, Squarey, Numberblobs, Aliens, Rainbows, Flatlanders, Alphablocks


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