Thanos

Personality
When he learned Gamora was pregnant, he instead let her give birth to her daughters and let them live. However, he had Gamora abandon her youngest daughter, Alexis to her father, Peter Quill.

Relationships
Alexis Quill - Adopted granddaughter. Gamora tells her daughter that she's lucky she wasn't raised by Thanos, as she would be a monster just like her and Rey. Thanos had expressed love for Alexis when she was born, however, he only let Gamora keep one child: the one that looked more like her. However, he didn't have her abandoned at birth, but rather sent off to live with her father and hoped that one day, Alexis would join her mother and sister. . When Alexis met him for the first time after he kidnapped her and Gamora, Alexis yelled that it was his fault she grew up without a mother and was left with only a father, grandfather and uncle.However, Thanos told her that it was only necessary, as it made her the woman she was today, and that he hoped he would find out about her family one day and come find her family.

Family

 * Nebula (adoptive daughter)
 * Gamora (adoptive daughter)
 * Peter Quill (adoptive son-in-law)
 * Alexis Quill (adoptive granddaughter)
 * Rey Quill (adoptive granddaughter)

Trivia

 * Thanos, along with Quill, Rey, and Thor and Loki, are the only ones to retain their memories of their real counterparts

Quotes
Alexis Quill: I never understood why my mom gave me up to my dad Until now. I know now that you forced her to give me. And because of YOU, I GREW UP WITHOUT A  MOTHER! Thanos: Yes, But you've found her