Sam Heughan and Graham McTavish are two of the most recognisable faces from the Outlander series, and have formed a close bond off-screen as well.
The two Scots actors became fast friends during their time on the hit Starz historical fantasy show, where Sam, 42, plays Highland warrior Jamie Fraser, and Graham, 61, played Dougal MacKenzie before he met his demise.
Since then, the two have co-written two books together, 'The Clanlands Almanac: Seasonal Stories from Scotland', and, 'Clanlands: Whisky, Warfare, and a Scottish Adventure Like No Other', as well as filmed two seasons of their travel show Men In Kilts.