Charlie Hunnam's much-talked-about physical transformation for Monster: The Ed Gein Story includes an eye prosthetic that's raised a lot of questions. Right off the bat, fans of the British star were quick to notice that Hunnam's left eye looked a little different on the Netflix show. The actor took on the role of late serial killer Ed Gein for the third installment in Ryan Murphy's series, which premiered on Friday, October 3.