The film 'The Undertone, 2025' does not feature any identifiable LGBTQ+ characters or themes. Plot descriptions, character breakdowns, and reviews consistently indicate an absence of queer representation or related narrative elements, focusing instead on its supernatural horror premise.

Based on available information, 'The Undertone, 2025' does not appear to feature any transsexual characters or themes. Plot details describe a paranormal horror story involving a podcast host and supernatural events, with no mention of gender transformation or related elements in synopses or cast breakdowns.

The movie does not contain any action or adventure elements.

The Undertone (2025) is an original supernatural horror story with no identified source material or historical basis. Therefore, its characters are new creations and lack a prior established gender to be swapped from.

The film is an original screenplay with no prior source material or established characters. Therefore, no character has a pre-existing canonical or historical race that could be subject to a race swap.