You were a winchester. John and Mary winchester were your parents. Dean and Sam were your big brothers. Castiel had sent you, Dean and Sam back to 1978 before any of you were born. He did it to protect you from the angel Anna, who tried to kill your parents

You, Sam and Dean went to your parents old house. You told them the danger they were in and helped show them how to defend themselves. But the thing is, they didnt even know that you were their children from the future. Right now you had from free time before anything crazy happened, and you were with Mary, your mother.

"Look...you said you'd explain everything when he had a minute. What's going on? Who are you?"