| Character | Gallery | Fanmades | Quotes |
| “ | And I like to go fast! | ” |
— Eighteen, his debut |
Eighteen, or 18, is a Numberblock made of 18 blocks. He is voiced by Rasmus Hardiker.
He is a hyperactive super-rectangle with the power of super speed.
Appearance[]
Eighteen is made of 10 white blocks with a red border and 8 magenta blocks. His usual block arrangement is a 3x6 rectangle, with eight pink blocks wrapping the right and bottom side of a 2x5 ten-block. He has thin, purple eyebrows, rectangular eyes, and limbs. He wears red shorts. His left arm features a rectangular white and pink watch referred to as an "array display", like his sister.
Personality[]
Eighteen is hyperactive and an easily excitable super-rectangle who enjoys speeding from place to place. He reflects his power of super speed in his casual behaviour, often completing tasks as quickly as possible, and taking little consideration for his surroundings. He easily adapts to many situations with his energetic personality, often jumping headfirst into reckless issues without expressing concern or hesitation-- instead viewing distress as fun and desirable. He is also often upbeat and cheerful, encouraging his friends frequently and attempting to include others in his super speed activities, even occasionally instructing and guiding others. His leadership abilities is further explored as he is quick to jump to solutions, making quick work of his observations despite his normally impulsive behaviour. He is also very dramatic as his speech is often influenced by his behaviour, talking in various exaggerated tones rapidly.
However, Eighteen is also prone to be so impatient, as seen in Sign of the Times, unable to handle waiting times or being excluded out of activities. He is also susceptible to speaking and acting impulsively, leading to him unintentionally speeding over others or landing into greater problems. He also demonstrates a short attention span, favouring his impulses over rational thought, heavily contrasting his sister. Eighteen is also shown to be greatly attached to activities that excite him, discarding previous desires in favour of his new interest.
Eighteen has the natural ability of super speed, often amusing himself by speeding around on his rays. His speed is shown to reach extreme levels, demonstrated by his capability of orbiting the planet multiple times in mere seconds. He frequently switches arrangements while speeding, increasing his speed based on the length of his blocks. Eighteen, however, does not appear to have full control of his abilities, as he is shown to be unable to slow his speed down appropriately and is prone to dizziness and exhaustion.
Episode Appearances[]
- Eighteen (debut)
- Loop the Loop (biggest number)
- Nineteen
- Twenty
- Tall Stories
- Flights of Fancy
- I Can Count to Twenty
- Heist
- Sign of the Times (biggest number)
- Terrible Twosday (biggest number)
- Divide and Drive (biggest number)
- Fifty (doesn't speak)
- The Big One
- More to Explore
- The Many Friends of Twenty
- Ten Vaulting (biggest number)
- Twoland
- Two Times Shoe Shop
- Odd Side Story
- How Rectangly!
- Rectangle Racers
- The Team Factor
- Hidden Talents
- Now in 3D
- Club Picnic
- Too Many Threes
- Circus of Threes
- Figure It Out (picture)
- What If?
- 100 Ways to Leave the Planet (compound)
- Making Friends
- Crossover (icon)
- The Blocks v Blocks Games
- As Tall As The Sun
- The Rolling Sixes
- Remix the Sixes
- The Magical Nines
- Nine's Time to Shine
- Double Doors, Double Locked (latest appearance)
Total number of appearances: 37 + 2 pictured
He has appeared in 22.42% of all Numberblocks episodes, including the crossover specials.
Arrangements[]
Because of Eighteen's array display, he can make different rectangular arrays: vertical, 2x9, 3x6, 6x3, 9x2, or horizontal. He can also make a bunch of other shapes.
2D (79/1,540,820,542)3D (1) |
Trivia[]
- Eighteen's sister is Twelve, as stated in Loop the Loop and How Rectangly!.
- This is possibly because 12 and 18 have the same prime signature and the same prime numbers in their prime factorisations.
- Eighteen and Twelve are the third pair of siblings in the Learningblocks franchise, and currently the only pair of siblings in Numberblocks.
- He is the first character voiced by Rasmus Hardiker.
- He was the only character voiced by Rasmus Hardiker until Eighty-One was introduced.
- Double Doors, Double Locked is the only Series 8 episode, where he appears.
- As shown in some episodes, he can voice act many voice impressions, like making a weird voice, as shown in his debut. He can even make many facial gestures.
- He is the 2nd multiple of 3 to be male; the previous being Nine.
- He is the 1st multiple of 6 to be male.
- Eighteen is the biggest Numberblock below Twenty that has more than 3 divisors.
- In his eponymous debut episode, he calls himself “Octoblock on a Rocket,” This is because he is made out of Eight, whose superhero alias is Octoblock, and Ten, who can turn into a rocket.
- He is the third Numberblock numerically, and the first male to wear pants. The first two are Eleven, and Twelve.














![18hookarr.png (141 KB) Sideways Hook (4L+(1x3)c4+((1[>5]1)x2)c4+7c4)](https://static.wikia.nocookie.net/numberblocks/images/b/b2/18hookarr.png/revision/latest/scale-to-width-down/95?cb=20211103090138)
![18-24 w holes.jpg (160 KB) Totally Zero (4+1[>2]1+1[>]2+2[>]1+1[>2]1+4)](https://static.wikia.nocookie.net/numberblocks/images/2/2a/18-24_w_holes.jpg/revision/latest/scale-to-width-down/65?cb=20240217233240)
![Octodecimal.jpg (133 KB) Totally Ten (1c2+2[>]3+((1[>]1[>]1)x2)R+6)](https://static.wikia.nocookie.net/numberblocks/images/b/b3/Octodecimal.jpg/revision/latest/scale-to-width-down/95?cb=20240221231946)
![18-squareWlegs.jpg (78 KB) (4x4)+1[>2]1](https://static.wikia.nocookie.net/numberblocks/images/9/90/18-squareWlegs.jpg/revision/latest/scale-to-width-down/77?cb=20240303093831)
