I've always loved this image of Dwight Frye from "Bride of Frankenstein".
Dwight Frye is mostly remembered from his roles in Universal's horror pictures, including: "Dracula", "Frankenstein", and the "The Invisible Man". Each of these films featured Frye in minor, supporting roles, but he always managed to shine. For example, in "Dracula", Frye delivered a particularly chilling and memorable performance as Renfield, the Count's (literally) bloodthirsty henchman.
Brrrr... If that doesn't send shivers down your spine!