Y

Y is a white Letter Y, with cream shading. She has two large eyes in the direct middle of her body (one larger than the other depending on the angle) and her mouth underneath. Her eyes also have two curly eyelashes. Y is a very sensitive yet kind Letter who cares for her friends, especially X as she screamed in terror upon seeing his dead body. Y was only seen for a short time as a lowercase Letter in ‌nZ.... From o alerting everyone, after she, a and s saw the word "frick", she quickly closed her eyes in terror, and said her name. In Y, after she saw X's dead body, she crouched, quickly looked at the sky, and said her name. After F was defeated, she and N were puzzled after seeing that F just wanted to form "FRIENDS". After that, Q showed up and showed what happened to F that made him evil.

She appeared in Now I Know My ABCs. She can be seen in the cave with G, A, M, U, Q, R, I, E, N, D, S and F. Lowercase y is seen alongside b, m, and x, oblivious to q and the UFO. In that time period, she grew into an adult and witnessed X being taken forcefully by 1.

As such, she helps in stopping 1 to save X. She uses her body as a slingshot (since of course they're shaped like the letter) to shoot X clones at 1. At first it works, and 1 takes off, but he soon returns not long after and captures X. When M uses his gem to stop the ship from moving, 1 creates 2, who uses its horn to jab Y unconscious, leaving a red X-shaped scar underneath her right eye.

She reappears three episodes later, where she is seen helping M, who is unable to walk due to his injuries, get around. They find X, who is still lamenting over his failure to defend their home, who walks away in shame soon after. The Five horde then catches up to them, but T arrives just in time to save the two.