As a lowercase letter, R was friends with F, I, E, N, D and S. r along with i, e, d and s were scared away by l about to slingshot o. When f was pushed by l, he was involved in the spelling of "frick". This made all the letters turn on f.

Sometime before F's attack on the letters, R grew into an adult.

In his episode, R, he introduces himself right before F's shadow looms over him, along with the ";" gem. He is also seen on "MAP" when F heads for S. In Y, as A, G, M, N and U enter the cave, F'