Based on available information, *Citadel* does not prominently feature LGBTQ+ characters or themes within its narrative. The series focuses on espionage, memory loss, and global conspiracies, with no explicit emphasis on LGBTQ+ identities or issues in its core storyline or character arcs.

Based on available public information, the TV series Citadel (2023) does not appear to feature any transsexual characters or directly address the trans community within its narrative. Official synopses, cast details, and reviews make no mention of LGBTQ+ themes or trans representation, leading to a determination of N/A for its portrayal.

Based on available information, the characters in "Citadel" (2023), such as Mason Kane and Nadia Sinh, are portrayed consistently with their original descriptions, showing no instances where on-screen gender differs from established canonical or historical genders.

Citadel is an original contemporary spy thriller, not an adaptation of pre-existing material with established character races. All major characters are new to the series, and their casting aligns with their implied or stated backgrounds within the show's original narrative. Therefore, no race swaps occurred.