Dexter: Original Sin cast announced: Patrick Gibson as Dexter, Christian Slater as Harry, & Molly Brown as Debra. The prequel series follows young Dexter as he transforms into a vigilante killer ...

Debra (Jennifer Carpenter), the stylish Detective Angel Batista (David Zayas), and obnoxious lab tech Vince Masuka (C.S. Lee). The strongest part of “Dexter: Original Sin” is its cast.