Milly Alcock: High-Level Advice to Hire Acting Coach on 'House of the Dragon' Set

Milly Alcock, the Australian actress known for her portrayal of the young Rhaenyra Targaryen in the acclaimed Game of Thrones spinoff series, House of the Dragon, faced an unexpected challenge early in her tenure on the show. Alcock shared during her recent appearance on The Tonight Show that a high-ranking individual on set approached her just two days into filming with a suggestion that shook her confidence. "On my second day on House of the Dragon, one of the, I’m not gonna say who, but someone very high up, pulled me aside and was like, ‘Um, we’re gonna get you an acting coach,’" she recounted, admitting she was "mortified" by the encounter.

Despite the initial setback, Alcock humorously reflected on the experience, suggesting it reinforced her self-doubt. "It just confirmed everything that I’ve kind of known to be true, [which] is that I’m not very good at my job," she quipped, adding, "You know what I mean! I was like, ‘I can’t do this. This is terrible. This is a big mistake.’"

Nevertheless, Alcock's performance as the young Princess Rhaenyra, daughter and heir to King Viserys I Targaryen, has been well-received. She appeared as a series regular in Season 1 and made guest appearances in Season 2, which chronicles the decline of the House Targaryen. The role of the adult Rhaenyra is portrayed by Emma D’Arcy, who depicts her journey to becoming Queen.

House of the Dragon premiered in August 2022, marking a significant milestone just over three years after the final episode of the original Game of Thrones series. The show's success was immediate, securing a second season renewal shortly after its debut and a third season renewal in June 2024, even before the second season began. The series also clinched the Golden Globe for Best Television Series — Drama, underscoring its critical acclaim.

Looking ahead, while Season 3 is confirmed, fans eagerly await an official release date to continue following the epic saga of the Targaryen dynasty. Meanwhile, Alcock is set to expand her portfolio with roles as Kara Zor-El / Supergirl in the upcoming Superman movie this summer and in the 2025 release, Supergirl: Woman of Tomorrow.