More returning characters from Dexter have been announced to feature in Showtime's upcoming spin-off series, Dexter: Original Sin, joining Patrick Gibson as Dexter Morgan, Christian Slater as Harry Morgan, and Molly Brown as the character most in need of a swear jar, Debra Morgan. Christina Milian will play Maria LaGuerta, while James Martinez will take on the role of Angel Batista and Alex Shimizu will portray the dirty-minded forensics specialist, Vince Masuka. Reno Wilson will also join the cast as a new character called Bobby Watt.