While audiences eagerly await Milly Alcock’s debut as the Girl of Steel in 2026’s Supergirl movie, rumors are swirling that comedian and actor Seth Rogen may be along for the cosmic ride in a secret, small role.
Seth Rogen rumored to voice an alien in Supergirl
New speculation suggests Seth Rogen has a hidden part in the upcoming DCU film. According to a post from known scooper My Time To Shine Hello on X (formerly Twitter), “Seth Rogen has a secret role in SUPERGIRL as an alien who runs a space bus.” While brief, the claim stood out because it aligned with earlier chatter about a surprise Hollywood cameo in the movie.
Earlier, the rumor came from The Hot Mic podcast, where Jeff Sneider claimed — citing a source — that Seth Rogen does indeed have a voice cameo in Supergirl. Sneider clarified that he did not know which character Rogen was voicing. He later added on X that Rogen was not voicing Krypto, shutting down one of the more popular fan theories.
The Krypto rumor had circulated after reports of a test screening suggested Rogen had a voice role in the film (via ComicBookMovie.com). However, this theory conflicted with Supergirl: Woman of Tomorrow, where Krypto does not speak, making the idea of a voiced performance unlikely.
Ultimately, all of this remains unconfirmed. There is no official announcement yet, and Sneider himself emphasized that these details are rumor-based. For now, fans will have to wait until Supergirl hits theaters on June 26, 2026, to find out whether Seth Rogen’s secret role is real.
The DCU’s Supergirl adapts Tom King and Bilquis Evely’s acclaimed comic Supergirl: Woman of Tomorrow. Milly Alcock leads the film as Kara Zor-El, with a supporting cast that includes Matthias Schoenaerts, Eve Ridley, and Jason Momoa. It is directed by Craig Gillespie from a screenplay by Ana Nogueira.
Originally reported by Devanshi Basu on SuperHeroHype.
