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New 'Dexter' Promo: Season 6 Features New Characters, Tackles Faith (VIDEO)

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If this new promo for the upcoming season of "Dexter"--which premieres Sunday, Oct. 2 on Showtime--tells us anything, it's that season six is sure to feature a lot of new blood--and faith.

Actor Michael C. Hall describes one new character, Brother Sam (played by Mos, sans Def), as someone whom Dexter initially is pursuing as a potential victim but later turns into his ally after finding the saving graces of God and his newfound faith. Now that's one way to avoid Dexter's bad side--or cutting table.

Next, we have Professor Gellar (Edward James Olmos) and his young protege Travis (Colin Hanks). Travis does some pretty bad things in the name of God, under the twisted guidance of his creepy mentor. But if Travis truly believes that he's doing the right thing in the name of God, does that make him a bad guy?

Bringing a shining positive influence on Dexter's son Harrison is Jamie Batista (Aimee Garcia), who is the new nanny and Angel's sister. She kind of comes off as a modern-day flower child, spreading love and positivity everywhere she goes, but can anyone really be that optimistic? And if she can't handle blood very well, then we can't wait to see the mess that she gets herself into this season.

Mike Anderson (Billy Brown), meanwhile, is a new detective and Chicago native who is described as being intolerant of shenanigans--and judging on the way he treats Deb, possibly women. Deb has certainly got her hands full this season.

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