A deep-thinking and emotionally mature man who becomes romantically involved with Georgia. He is Oliver’s straight AA sponsor who supports Georgia in confronting her past and family conflicts.

Georgia's brother, who has faced family rejection for being gay and struggles with issues of addiction. He maintains a close relationship with Georgia and works towards sobriety with Sam's help.

Georgia’s sister, who is known for her narcissistic and manipulative behavior. She maintains her image as the “good” daughter and frequently antagonizes Georgia.

The eldest sibling in the Carter family who seeks to reconcile with Georgia and Oliver. He evolves throughout the story and attempts to amend his past mistakes.

Georgia's parents, who display favoritism toward their other children and make difficult decisions impacting Georgia and Oliver’s lives. Both have complex pasts that are revealed after Will's death.