outlander author diana gabaldon cameo episode 4 'Outlander' author Diana Gabaldon cameos on episode 4 of Starz seriesDiana Gabaldon, who write the wildly popular “Outlander” novels, guest stars in episode 4 of the Starz drama based on her books.

According to Entertainment Weekly, Gabaldon will play Iona MacTavish in “The Gathering,” and filmed her scene in the episode in February. This isn’t your typical author cameo, however — she also has a speaking role.

Want to know more about her experience? Check out the two-part blog on her website, and watch executive producer Ron Moore take her on a tour during her very first visit to set in the video below.

Gabaldon’s episode airs Saturday (Aug. 30) at 9 p.m. ET/PT on Starz.