Kyle Winchester (né Wyatt) is the son of Cain Dingle and Amy Wyatt. He was adopted by Tom and Karen Winchester. Following the death of his adoptive parents in July 2013, Kyle was raised by Karen's mother Joanie until her own death in January 2017. After a brief spell in care, Joanie's widower - and Kyle's biological grandfather - Zak Dingle was granted guardianship of Kyle.