Peter Claffey puked all over the set on his first day on A Knight of the Seven Kingdoms

Peter Claffey had a memorable first day on the set of A Knight of the Seven Kingdoms, though not entirely in the way any actor hopes for. In a behind-the-scenes featurette from HBO, the actor who plays Ser Duncan the Tall revealed that his inaugural experience on the Game of Thrones prequel involved an embarrassing—and oddly fitting—accident that left him mortified.

Quick read:

• Peter Claffey vomited in the production office on his first day, but showrunner Ira Parker saw it as fitting for the character Dunk.

• Claffey described Dunk as an everyman underdog experiencing Westeros from a perspective of powerlessness and constant surprise.

• Despite his rocky start, Claffey called the experience “the greatest” and expressed enthusiasm for continuing with the character.

Vomiting in the Production Office as a Nervy First Impression

Claffey didn’t mince words when recalling his introduction to the production. “The first particular rehearsal I remember driving up and meeting Ira and Owen. And then I puked everywhere in the production office,” he admitted. The moment was clearly mortifying for the young actor meeting his showrunner and co-creator for the very first time under the worst possible circumstances.

But what could have been a disastrous first impression took an unexpected turn. Claffey said he immediately apologized to showrunner Ira Parker, telling him, “That was pretty mental.” Parker’s response, however, reframed the entire incident. Rather than being concerned or disappointed, Parker saw it as serendipitous. “He was like, nah, it’s great man. That’s just like Dunk. You know what I mean?”

Dunk as the Everyman Perspective in Westeros

In the same featurette, Claffey reflected on what makes Dunk unique in the Game of Thrones universe. “Dunk is your typical underdog at the start,” he explained, pointing to a character defined not by birthright or great houses, but by humble ambition and survival. The difference between Dunk’s story and the sprawling political dramas fans know is that viewers experience Westeros through the eyes of someone with no power, no name, and no expectations placed upon him.

Claffey highlighted what drew him to the role in the first place. “My favorite things in the whole book were when we think of Game of Thrones, we think of the Great Houses… is different because it’s from the perspective of someone that’s never expected. And the humor that comes with that too.” Dunk’s journey is comedic precisely because he’s an underdog constantly surprised by his own potential.

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