‘When Calls the Heart’ actress Mamie Laverock is currently on life support. The 19-year-old’s parents explain on their GoFundMe page for the actress, she was receiving medical treatment at a hospital in Winnipeg when she fell five stories from a ‘balcony walkway.’ Mamie’s castmates, Erin Krakow and Johannah Newmarch, shared messages of support on Instagam.