Big Love alum, Shawn Doyle has been tapped to play the role of "Claude" on the CW's Reign. His character is uncle to the teenaged Mary, Queen of Scots (Teen Wolf‘s Adelaide Kane).
Described as seductive and libertine, Claude shows up at French court shortly after Mary’s own arrival to advise his niece on matters both political and personal. Along the way he will rouse trouble between the King and the Queen of France.
Charismatic, amusing, worldly and powerful, Claude is a master of sexual intrigue, but is also capable of savage retribution — and he’ll do anything it takes to maintain his power and position at Court.
Source: TV Line