Crackle, Sony Pictures Television Networks' free, ad supported streaming network, today announced that production of its upcoming 10-episode original drama, "The Oath," is officially underway in San Juan, Puerto Rico.  Joining the renowned ensemble are Michael Malarkey ("The Vampire Diaries"), Eve Mauro ("CSI Miami"), Kwame Patterson ("The Wire," "American Crime Story"), Linda Purl ("Homeland," "True Blood") and Elisabeth Röhm ("Law & Order").

They join previously announced castmembers:  Ryan Kwanten ("True Blood"), Cory Hardrict (American Sniper, Gran Torino), Arlen Escarpeta ("The Magicians"), Katrina Law ("Training Day"), J.J. Soria ("Animal Kingdom," "The Fosters) and "Game of Thrones" alum, Sean Bean.  The drama series is slated to debut in 2018.

Creator and executive producer Joe Halpin said: "We've assembled a top notch production crew and a stellar cast.  This show reflects a very personal and gritty narrative, so I want to thank Crackle for allowing us to take the reins and get this party started."

Eric Berger, GM, Crackle, said: "This show brings together an a-list ensemble and creative team who are creating a completely unique show for our audience.  We want to thank Joe for his leadership on the ground and to 50 Cent and his team for their enormous support and partnership with this series." 

Michael Malarkey plays Sam Foster, a police officer and lieutenant for the Vipers, a rival cop gang. Going through a difficult and expensive divorce, he is involved in a forbidden love affair with Karen Beach (portrayed by Law), a member of the Ravens.

Eve Mauro portrays Theresa Winters, a cop and leader of the Vipers, a rival cop gang within the department. Ruthless and unpredictable, there are no lines she is not willing to cross.  With Tom Cole (Sean Bean) in prison, she has taken his place working with local drug dealer, Neckbone (Kwame Patterson).

Kwame Patterson plays Neckbone, a calculating and dangerous high-level drug dealer with multiple cop gangs on his payroll. His organization is currently under threat from a new designer drug. As the series progresses, he sets off a chain of events that forces the Ravens into the middle of a drug war.

Linda Purl is Gwenn Hammond, Steve and Cole's mother, and Tom's ex-wife. Suffering from late stage cancer, Gwenn takes laundered money from Steve for her treatments.  Though she and Tom have ended their marriage they remain on good terms, and still care about each other.

Elisabeth Röhm plays Aria Price, a senior FBI agent. Byrd's (Escarpeta) handler in the undercover operation targeting the Ravens. A shrewd bureaucratic animal and creature of expediency. Her mandate is to steer corrupt cops back to the right path, but there's also a darker, more opportunistic side to Aria that comes to light further on in the series.

Created by Joe Halpin ("Hawaii Five-O," "Secrets and Lies"), who worked as a Los Angeles County Sheriff's Department deputy in South Central for 17 years, 12 of which as an undercover officer, the series takes ‎an unforgiving look at the complicated dynamics in these organizations and documents the lives of those willing to risk it all, to have it all.

Executive produced by Curtis "50 Cent" Jackson and his G-Unit Film & Television Inc., the gritty, action-packed drama, explores a world of gangs made up of those sworn to protect and defend and sheds light on corrupt and secret societies that are nearly impossible to join—only a select few make the cut–but once inside, members will do what they must to protect each other from enemies on the outside and from within their own ranks.

"The Oath" is executive produced by Curtis "50 Cent" Jackson and his G-Unit Film & Television Inc., Todd Hoffman and Dennis Kim of Storied Media Group, Anne Clements ("StartUp") and Joe Halpin who is also creator, writer and showrunner.  The premiere episode will be directed by Jeff T. Thomas ("Blindspot," "Wayward Pines").