One thing Outlander taught its viewers across its first five seasons was that Murtagh Fitzgibbons Fraser was a man of his word.
It was his sworn personal duty to protect his godson, Jamie Fraser (Sam Heughan), and by George, the man did his best he could with Jamie and Claire (Caitriona Balfe) blazing a trail through the most treacherous parts of the 18th century. From France to the Battle of Culloden to Ardsmuir Prison and finally the American Colonies, Murtagh (Duncan Lacroix) showed up for Jamie when he could — even if they fought like brothers along the way.