Mama Scarface is a large, ferocious Tyrannosaurus with a brown body and beige underbelly. She has a big scar on her face and a few more scars on her neck, shoulder, and tail. She also stands 30 feet tall at the hips and 99 feet long.

This T. rex had grown to immense size be it due to age, some kind of genetic experimental mutation, other biotic factors, or possibly all of the above. She has a giant, scar over her right eye, resulting in a loss of sight. How she received her scar is unknown.