Speculation about Milly Alcock’s Supergirl in Superman (2025) has surfaced following the release of the film’s first trailer. A particular moment in the footage has drawn attention, leading to discussions about a possible connection to the character. Directed by James Gunn, the movie is set to premiere on July 11, 2025, as part of the expanding DCU. While Supergirl: Woman of Tomorrow (2026) is confirmed, questions remain about whether the character might appear sooner than expected.
DC fans have possibly spotted Milly Alcock’s Supergirl in Superman trailer
The first trailer for DC Studios’ Superman (2025) has led to speculation regarding the possible appearance of Milly Alcock’s Supergirl. At the 1:50 mark of the trailer, a moment shows David Corenswet’s Superman appearing emotional while holding what is believed to be the Kryptonian robot Kelex.
A closer look at Kelex’s reflective surface has drawn attention to a possible silhouetted figure in the background. The image was first highlighted by @DCUBrief on X (formerly Twitter), where users pointed out that the reflection appears to show someone with blonde hair and a blue outfit, which are elements associated with Supergirl’s traditional costume.
If accurate, this could mark Supergirl’s first DCU appearance ahead of her solo film, Supergirl: Woman of Tomorrow (2026). However, no official confirmation has been given regarding Alcock’s involvement in Superman (2025).
Potential Supergirl cameo in Superman trailer starts huge debate
While some viewers believe that the reflected figure is Supergirl, others argue that the image is inconclusive. The debate has been active across social media, with fans analyzing the trailer frame by frame. Some users have suggested that the figure resembles other DC characters. For example, one user wondered, “Why’s it look like Black Canary?!”
Other responses expressed doubt, noting that the reflection is unclear and may simply be a visual coincidence rather than an intentional tease of Supergirl. Additionally, James Gunn previously refuted reports suggesting that Milly Alcock would appear in Superman (2025).
In July 2024, Gunn responded to speculation about Alcock filming a cameo in Cleveland on Threads, stating, “Nope. Never has been here unless she’s vacationing in [Cleveland, Ohio] and hasn’t contacted me.”
With the film’s release set for July 11, 2025, there has been no official confirmation regarding Supergirl’s presence. Fans will have to wait for further footage or statements to verify whether the trailer includes Alcock’s Supergirl.
Originally reported by Anubhav Chaudhry on SuperHeroHype.
