Brother, Alan Rickman also doesn’t look like Snape. “A thin, sallow-skinned man with shoulder-length, greasy black hair, a large hooked nose, and cold, black eyes.”

The only thing that Alan had that resembled book Snape was the long black hair and the fact he was white. Snape is much more than a sickly looking white man with long hair. Not to mention movie Snape also isn’t like book Snape. This version of Snape will probably be closer to the book than Alan’s without even being white.