Guest Stars Liam Garrigan as King Arthur Amy Manson as Merida Joana Metrass as Guinevere Sinqua Walls as Lancelot Elliot Knight as Merlin Paul Telfer as Lord Macintosh Co Starring Marco D'Angelo as Lord MacGuffin Josh Hallem as Lord Dingwall Jordan Olson as Brother #2 Matthew Olson as Brother #3 Colton Barnert as Brother #1 Uncredited Ingrid Torrance as Nurse Ratched