A Knight of the Seven Kingdoms Phlegm Scene: The Gross Secret Behind Episode 1

The most talked-about moment in the premiere of A Knight of the Seven Kingdoms wasn't a sword fight—it was a disgusting wad of phlegm. While Dunk (played by Peter Claffey) delivered a poignant speech about knighthood, the Master of Games interrupted the gravity with a stomach-turning spit that has since gone viral among fans.

Inside the A Knight of the Seven Kingdoms Phlegm Scene Mechanics

According to Mashable, actor Tom Vaughan-Lawlor, who plays Plummer, treated the act with surprising technicality. He conceptualized the spit in three clear beats: the nasal hawk, the throat fermentation, and the sharp expulsion. This wasn't just an ad-lib; showrunner Ira Parker specifically scripted the detail to manifest the character's internal stress.

Despite the repulsive habit, Plummer serves a vital narrative purpose. The actor noted that beneath the stress-induced tics, his character sees a younger version of himself in Dunk. This subtle empathy is why he eventually aids the low-born knight in his quest to join the Ashford tourney. New episodes continue to drop Sundays at 10 p.m. ET on HBO.