As an expert in the field of comic book lore and pop culture, I can provide you with information on the characters within the Marvel Universe. Thanos, the Mad Titan, is a powerful villain who has been portrayed in the Marvel comics and more recently in the Marvel Cinematic Universe (MCU). When it comes to Thanos' family, there are a few characters that are often associated with him.

In the comics, Thanos has a daughter named Gamora. Gamora is a skilled assassin and a member of the Guardians of the Galaxy. She was raised by Thanos after he killed her entire species, the Zenwhoberi, and she was trained to become the deadliest woman in the universe. Despite her origins and initial allegiance to Thanos, Gamora eventually turns against him and becomes one of his most formidable adversaries.

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Nebula is a Luphomoid assassin, an adopted daughter of the intergalactic warlord, Thanos and as well the adopted sister of Gamora. As the right-hand woman of Ronan the Accuser during his and Thanos' quest to retrieve the Orb, she helped him in the fight against the planet Xandar and the Guardians of the Galaxy.read more >>