Rain Riverly

Rain Riverly is the unborn child of Eryx Riverly and Moira Riverly. His mother, Moira, was pregnant with him when she was killed under Eryx's order, resulting in Rain's death.

He has an older sister named Sol Riverly who is five years older than him, and an older half-sister named Atlantis Beckett who is two years older than him. Rain and Atlantis' share the same father, however, Atlantis' mother is Zara Beckett - the woman Eryx was having an affair with which led to his decision to have Moira killed (so he could focus on starting a family with her).