Denis O'Hare's characters on American Horror Story are so vastly different from one another that they stand as a testament to just how good a character actor he is. The multiple award-winning actor clearly has fun with the roles he’s taken on each season and you can see it in his performances. O’Hare embraces the smarmy, dedicates himself to the creepy, struts with purpose, and takes lurking to a whole new level. Listed here are all the characters played by Denis O'Hare on American Horror Story so far. May there be many, many more.