Heughan and Gabaldon have a close relationship which started shortly after he was cast in Outlander.
Gabaldon and Heughan found each other on social media and started talking about the series.
She said Heughan had done a “wonderful job” during his audition, taking lines straight out of the novel which “thrilled” her.
The acclaimed writer said Heughan’s sense of the character of Jamie was “pretty close” to hers.
Interestingly, there were plans to make an Outlander film in the Nineties with the likes of Sean Connery and Liam Neeson considered for the role.
However, the movie never came into fruition with Starz eventually turning it into the hit series fans know and love today.
Outlander seasons 1 to 5 are streaming on Amazon Prime Video