Fantastic Voyage is a classic science fiction adventure centered on a medical mission. The film does not feature any identifiable LGBTQ+ characters or themes, focusing instead on scientific challenges, espionage, and survival within the human body.

Fantastic Voyage (1966) is a science fiction film centered on a medical mission inside the human body. The narrative and character arcs do not include any identifiable transsexual characters or themes. Therefore, the film has no portrayal of transsexual identity.

The film focuses on a miniaturized submarine crew navigating a human body. The challenges are primarily scientific and biological, not involving direct physical combat between characters. No female character engages in or wins close-quarters physical fights against male opponents.

The 1966 film "Fantastic Voyage" introduced its original cast of characters. There is no prior established canon (e.g., books, comics, or earlier screen versions) where these specific characters existed with different genders.

The 1966 film "Fantastic Voyage" introduced its main characters without prior canonical or widely established racial depictions from source material or previous adaptations. Therefore, no character's race was altered from an existing portrayal.