Alphabetrian

The Alphabetrians are a species of sentient letter-like creatures made of various elements from the planet Alphabetrium.

Biology
As stated above, Alphabetrians are often made of random elements, and take the shape of different letters. They tend to have either realistic human faces, or simplistic faces. They also seem to be capable of shapeshifting, as Water-T (known to humans as "Ice-T") lived on Earth in a human guise.