American Horror Story: Freak Show will add Neil Patrick Harris and husband David Burtka to their list of guest stars set to appear on this fourth season. Hollywood hot topic NPH will guest start in the 11th and 12th episode as a chameleon salesman while David Burtka will be in the final episode of the season.

Murphy and Harris have been friends and collaborates since Fox’s ‘Glee.’ Harris has also been a super-fan of the previous American Horror Story installments. Harris and Burtka would certainly round the lively and colorful cast of characters and their actors in Jessica Lange, Evan Peters, Kathy Bates, and Sarah Paulson.