In article posted by EMPIRE Magazine, Andy Serkis describes Snoke.
"Snoke is bloody dark; way darker than Palpatine,” Andy Serkis tells us in the new issue of Empire. “He’s riddled with this osteoporosis so his body's twisted, like a corkscrew. He's incredibly damaged, so there's a bizarre vulnerability about him. Beneath that vulnerability, though, is this intense hatred."