Starz announced, via its Twitter, that the role of Uncle Lamb had been cast. He'll be played by Prentice Hancock (Space: 1999, Doctor Who).
Meet Uncle Lamb. Prentis Hancock will play the archaeologist who raised Claire & was a large influence in her life. pic.twitter.com/3GUZDeiqt7
— Outlander (@Outlander_Starz) November 10, 2013