X is the 24th letter in the Alphablock gang.

X is voiced by David Holt.


Just like Octoblock, he is a superhero; the X Man. He is strong and uses his X-ray vision.


Plusman is X's alter ego. He is red and orange and makes compound words.


  • A common running gag is that whenever X uses his x-ray vision, he scans to the right, middle, and left.
  • X's letter means 10 in Roman Numerals.
  • Although not seen, X keeps bumping his head on the ceiling.
  • As seen in Plusman, X dislikes bananas.

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



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