The Beast from 20,000 Fathoms, a 1953 monster film, does not feature any identifiable LGBTQ+ characters or themes. Its narrative centers on scientific investigation and military efforts to combat a giant dinosaur, with no subplots or character arcs related to queer identity. Therefore, the film's net impact on LGBTQ+ portrayal is N/A.

The film is a classic science fiction monster movie from the 1950s, focusing on a prehistoric creature awakened by atomic testing. It does not feature any identifiable transsexual characters or themes, nor does it touch upon gender identity in any capacity.

The movie does not contain any action or adventure elements.

The Beast from 20,000 Fathoms (1953) is an original monster film that introduces its own cast of characters. There are no pre-existing, canonically established characters from prior source material or history whose gender was altered for this adaptation.

The film is an original monster movie from 1953, loosely based on a short story. Its characters were not previously established as a specific race in any prior canon or historical record, nor is it a reboot of existing characters. No race swaps are present.