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 Josh Hallem as Lord Dingwall Marco D'Angelo as Lord MacGuffin Jordan Olson as Brother #2 Matthew Olson as Brother #3 Colton Barnert as Brother #1 Uncredited Ingrid Torrance as Nurse Ratched