Dejah Thoris, a princess of the Martian city-state of Helium, is a central character in Edgar Rice Burroughs' Barsoom series. Known for her bravery, intelligence, and unwavering loyalty, Dejah Thoris is a formidable warrior and a skilled scientist. Her adventures often involve navigating the treacherous political landscape of Mars, battling various alien species, and striving to unite the warring factions of her planet. Her most notable relationship is with John Carter, an Earthman who becomes her husband and the key to her many adventures. Dejah Thoris embodies the spirit of resilience and hope, inspiring those around her to fight for a better future for Mars.
Her appearance is striking, with long, flowing red hair and piercing green eyes, which are common traits among the red Martians. She typically wears a revealing outfit that reflects her royal status, consisting of a jeweled harness and a flowing cape, often in the colors of Helium—red and yellow.