Blood of My Blood showrunner Matthew B. Roberts explains the extent of Diana Gabaldon's involvement in the prequel series.

“Blood of My Blood” tells the love story of Jamie’s parents, Ellen and Brian, and Claire’s parents, Julia and Henry. The characters are inspired by the stories of Diana Gabaldon but there are no novels for showrunner Matthew B. Roberts to follow. He also is the showrunner of the original series, which debuts its final season early next year.

Blood of My Blood, Davis and Roberts explain why the prequel's Murtagh (Rory Alexander) feels so different from the version play