Sam of Seasons 1 – 4
Sam: Hi. I’m Sam Winchester. I have demon blood coursing through my veins. I fear becoming a monster but I will do everything within my power to prevent that from happening. But if I can find a way to use my demon blood for good, then I’ll do it.”
Dean of Seasons 1 – 4
Dean: “Hi. I’m Dean Winchester. My family was destroyed by forces beyond my control. My mission in life is to prevent other families from being torn apart like mine was. I’m also dedicated to looking out for my brother: preventing him from becoming the monster he fears he will become.”
Sam of Seasons 6 – 9
Sam: “Hi. I’m Sam Winchester. If you had tried to contact me a few weeks ago, you would have gotten the soulless version of me. Wait. Or was that a month ago? I think a few weeks ago I was re-souled and then soon after the wall in my head was destroyed. Ok. So that means I was hallucinating Lucifer a couple of weeks ago. Then not too long after that, I was spitting up blood and fainting. Sorry for the confusing timeline. It’s hard to keep tra…”
Gadreel/Ezekial: “Sorry. Sam Winchester is not home at the moment. You’re speaking with Gadr…I mean, you’re speaking with Ezekial.”
Dean of Seasons 6 – 9
Dean: *follows Sam around with a bib* “Hi. I’m Dean Winchester. Sammy’s nanny.”