The Astronaut (2025) is a sci-fi horror thriller that does not feature any identifiable LGBTQ+ characters or themes. The narrative focuses on the protagonist's personal and professional challenges, with no explicit portrayal of the LGBTQ community mentioned in the provided details.

The Astronaut (2025) centers on an astronaut's biological transformation into an alien, exploring themes of identity and extraterrestrial origin. Based on available information, the film does not feature any identifiable transsexual characters or themes related to gender identity transformation. The depicted transformation is purely biological and sci-fi related, not concerning human gender identity.

The movie does not contain any action or adventure elements.

The film and all its characters are original creations, not adaptations of pre-existing works or historical figures. Therefore, no character possesses a prior established gender that could be subject to a gender swap.

The Astronaut is an original 2025 film, not an adaptation of existing source material. Its characters, including Sam Walker, General William Harris, Mark Walker, and Dr. Michelle Aiden, are new creations without pre-established canonical or historical racial identities. Therefore, no race swaps occur as there is no prior race to deviate from.