In television history, few near-misses loom as large as the original unaired pilot of Game of Thrones. Long before the series became a billion-dollar cultural juggernaut, HBO filmed a first version of the pilot in 2009 that was so poorly received it nearly killed the project outright. At the center of that failure was a single, fateful casting choice: Daenerys Targaryen.
Before Emilia Clarke became the indelible Mother of Dragons, the role was played by Tamzin Merchant, an accomplished performer best known at the time for The Tudors. The entire episode was filmed with Merchant, but when HBO executives and industry peers finally saw the cut, alarm bells rang. According to multiple insiders, the pilot was confusing, tonally off, and emotionally hollow.
A Daenerys Without an Anchor
Merchant’s Daenerys wasn’t inherently “bad,” but it was fundamentally misaligned with the story’s needs. Her interpretation leaned toward a seductive, passive figure, rather than a frightened young girl slowly discovering inner steel. That distinction mattered enormously. Daenerys is the audience’s emotional bridge into the epic fantasy world; without vulnerability, her journey collapses.
Merchant herself later admitted the role never felt right. In interviews, she revealed she attempted to leave the project during contract negotiations but was persuaded to continue. Filming the now-infamous wedding night scene in Morocco only confirmed her doubts, calling the experience a lesson in trusting her instincts.
Adding to the chaos, author George R. R. Martin later confirmed that the original shoot was plagued with bizarre mishaps—including an unintentionally distracting background moment involving a horse during the wedding scene. It became emblematic of a production spiraling off course.
The Nuclear Option: Reshoot Everything
Faced with disaster, showrunners David Benioff and D. B. Weiss made an extraordinary decision: scrap nearly 90% of the pilot and start again. Daenerys was recast, along with Catelyn Stark (originally played by Jennifer Ehle). It was a multimillion-dollar gamble rarely attempted in television.
When Clarke auditioned, she reportedly disarmed the room with warmth, humor, and emotional intelligence—qualities the original pilot lacked. That humanity became the foundation of Daenerys’ arc, allowing audiences to follow her transformation from abused exile to revolutionary icon.
A Franchise Saved by One Choice
The results are history. Game of Thrones went on to win 59 Emmy Awards, generate billions in revenue, and spawn an entire franchise, including House of the Dragon. Industry veteran Craig Mazin, who saw both versions, famously called the successful reshoot “a miracle.”
As unseen footage and production stories resurface in 2026, the lesson remains stark: Game of Thrones didn’t just change actors. It found its soul. Without Emilia Clarke’s Daenerys, the Iron Throne might never have been worth fighting for.