Sam
Where you're from I'm probably not. I'm so sorry Sam, for not being there and for how John dealt with it. That wasn't the life I wanted for you or your brother. Do you know the tests? Silver for shifters and Christo to see if I'm a demon? I can do those.
What else... your name is Samuel Winchester. You were born May 2nd, 1983. Only family is allowed to call you Sammy. You don't like burgers because you grew up eating them for what felt like every meal. You hate cutting your hair and you love school. You got a toy army man wedged in the Impala when you were young.
Whether you believe me about who I am or not I promise you'll be safe for however long we're stuck here. I won't let anything hurt you.