Every 'When Calls The Heart' Actor Who Has Left the Show, Plus Reasons Why Explained

Daniel Lissing, who played Mountie Jack Thornton, left at the end of season 5.

At the time, he shared that his reasons were personal.

“Circumstances arose for me where I needed to leave When Calls the Heart for reasons that are very personal to me,” he said in a Facebook Live. “I went to Hallmark and they were nothing but supportive of me. I went to the girls and they were nothing but supportive of me.”