Terrence Stamp
Bryan Cranston's character looks like the puppet form of Terrence Stamp
shareLOL, you're so right: http://www.sothebys.com/content/dam/sothebys-pages/blogs/eyeonasia/2016/3/terence-stamp-photo.jpg
But you never know; they could've been inspired by him. Sometimes animators base their character designs on actors.