The film "Marrowbone" does not feature any identifiable LGBTQ+ characters or themes. The narrative is centered on a family's isolated existence and their efforts to protect each other from past traumas and external threats, without incorporating queer identities or experiences into its storyline.

The film "Marrowbone" does not feature any identifiable transsexual characters or themes within its narrative. The plot focuses on a family's secrets and a haunting presence, without any elements related to transgender identity or experiences.

The movie does not contain any action or adventure elements.

Marrowbone is an original film with no prior source material, historical figures, or established canon for its characters. Therefore, no characters exist with a previously established gender that could be swapped.

Marrowbone is an original film from 2017, not an adaptation of existing source material or a depiction of historical figures. Therefore, its characters do not have a pre-established canonical or historical race to be swapped from.