Peter Quill

Peter Jason Quill, also known as Star-Lord, is the tritagonist of My Twin Sister's an Alien and the protagonist of My Dad's Father is a Planet

Background
Prior to the series, Quill met Gamora and together, they had a set of twins. Eventually, Peter became a single father raising his daughter, and named her Alexis Meredith after his grandmother and mother.

Family
Alive: Deceased:
 * Yondu Udonta (adoptive father)
 * Gamora Quill (wife)
 * Alexis Quill (daughter)
 * Rey Quill (daughter)
 * Mrs. Alexis Quill (maternal grandmother)
 * Unnamed maternal grandmother
 * Unnamed maternal uncle
 * Thanos (adoptive father-in-law)
 * Nebula (adoptive sister-in-law)
 * Pollux (father-in-law)
 * Rey (mother-in-law)
 * Ego (father)
 * Meredith Quill (deceased mother)
 * Unnamed paternal half-siblings