SPOILER ALERT: STOP READING NOW IF YOU HAVEN'T SEEN LAST NIGHT'S EPISODE!
As Brother Sam, a reformed criminal who appealed to the better angels of Dex's nature, the rapper-turned-actor (formerly known as Mos Def) hit all the right beats. Too bad he succumbed to the gunshot wounds he suffered in last week's episode, but his deathbed scene — in which he urged Michael C. Hall's serial-killer slayer to find forgiveness in his heart — was one of this season's most powerful moments.
Of course, this being Dexter, Brother Sam might not be gone for good — he could come back as a ghost. Perhaps he'll be the angel on Dexter's shoulder, urging him to smite the devil inside. Can I get an "Amen!"?
What did you think of Mos on Dexter?