As a human, Rocksteady had goldish blond hair and moustache, orange eyes, was overweight. He wore a tanish brown vest jacket, goldish lemon yellow shirt, green camouflage pants, and dark green boots.
As a mutant, Rocksteady is a slate-gray rhinoceros with armored shoulders, alligator-like jaws, two cream-colored horns, and elephant-like feet with three toes. He wore a remaining clothes, except boots and vest jacket while also occasionally sporting a strong green army helment with goggles on his head.
- As a human, Rocksteady shares a strong resemblance to Giggles from Kong: Animated series.
- Ironically he has a few similarities to Giggles. They both somewhat dim-witted, arrogant and laughable.
- His clothing appearance seems to be inspired by that of the original Rocksteady from 1987 TV series.
- His mutant form has also affected his personallity and enhanced his skills.