"Supernatural" The Executioner's Song (TV Episode 2015) - Misha Collins as Castiel

Castiel : This is a massacre.

Cain : Yes. And soon it will be a genocide. My children, my whole poisoned issue. Lot of them out there right now... killers, fighters, thieves. Some more peaceful than others, but they still carry it... the disease. If the Mark wants blood, I'll give it mine.

Castiel : You are Adam and Eve's first born, your descendants are legion.

Cain : At most I'm culling... one in ten.

Castiel : Of everyone.

Cain : I've got time.
Sam Winchester : I mean, come on. It's a kid. You don't really think Cain would-...

Castiel : Yes, he would.

Dean Winchester : There were old men in those graves, Sam, women. I mean, you heard Cass. It's a fire sale. Everyone must go.
Sam Winchester : Cain abducted a Texas death row inmate named Tommy Tolliver.

Castiel : He's dead.

Sam Winchester : What? How do you know?

Castiel : [Standing in field full of burial mounds] Call it an educated guess.
Sam Winchester : Dean, look, we want to help.

Dean Winchester : No. No, with you in the ring, it'd just be a liability.

Castiel : Dean?

Dean Winchester : I'd be too worried about what he could do to you... Or what I could. Plus, I need you three out here to take out whatever comes out of there. And I'm serious. I mean *whatever* comes out.

Crowley : Happily.

Misha Collins: Castiel