Warning: Spoilers ahead for Doctor Who season 15, episode 6, titled “The Interstellar Song Contest.” This episode, while not centering on the Zygons, makes a significant nod to the shapeshifting aliens, effectively addressing a lingering storyline from the era of Peter Capaldi as the Twelfth Doctor. The Zygons, who made their initial appearance during the classic series of Doctor Who, were reintroduced during Steven Moffat’s tenure, but their situation was left unresolved as they faced a dire need to integrate with humanity. But it seems that is no longer their predicament.
Hints of a New Zygon Homeworld in Doctor Who Season 15
Restoration of Zygon Identity Beyond Earth

The concept of an interstellar song contest in this episode draws inspiration from the real-world Eurovision Song Contest, a beloved event that has been captivating audiences since 1956. The contest has notably broadened its reach to include participants from outside Europe, reflecting its growing popularity. In the Doctor Who universe, the Interstellar Song Contest may have emerged as an adaptation of Eurovision, allowing diverse planetary performers to showcase their talents—no longer confined to nations of Earth.
While the episode does not explicitly state whether the Zygons are participants in the contest (how intriguing that would be), it does mention several planets that are tuning in to the event. Among them, the reappearance of the Alpha Centaurans is noteworthy, alongside the mention of a “Zygon New Habitat.”Given the catastrophic events expected to unfold on Earth by May 2025, the Zygons have evidently relocated from their previous home. The terminology suggests a constructed environment rather than an actual planetary settlement, which reflects their desire to live authentically away from human scrutiny.
Implications of This New Zygon Habitat
Significant Reduction in Earth’s Zygon Population

The revelation about the Zygons provides exciting implications. Traditionally, their true numbers on Earth are underestimated, thanks to their uncanny ability to perfectly mimic human appearances. As “The Interstellar Song Contest”unfolds centuries after their last documented appearance, it’s logical that the Zygons would have resolved their housing issues by this time. This sparks curiosity: could Earth now be free from the hidden alien threats posed by these masters of disguise?
Given the anticipated destruction of Earth, it’s plausible that many Zygons would have faced challenges during this tumultuous time, potentially leading to a sharp decline in their population on the planet. However, with Ncuti Gatwa’s Fifteenth Doctor poised as the protagonist in season 15, the likelihood of a successful intervention to save humanity before the cataclysm feels high. Such an outcome would prevent the Doctor from facing one of his most significant failures.
Doctor Who Season 15 Release Schedule on Disney+ |
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Episode |
Title |
Release Date (2025) |
1 |
“The Robot Revolution” |
April 12 |
2 |
“Lux” |
April 19 |
3 |
“The Well” |
April 26 |
4 |
“Lucky Day” |
May 3 |
5 |
“The Story and the Engine” |
May 10 |
6 |
“The Interstellar Song Contest” |
May 17 |
7 |
“Wish World” |
May 24 |
8 |
“The Reality War” |
May 31 |
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