Josh Zetumer and Michael Lennox will join as exec producers with Zetumer also serving as showrunner and Lennox directing.
But McConville was only one of many others who became known collectively as The Disappeared.
Edward McDonnell and Monica Levinson are also exec producing and the series is produced by FX Productions.

(L-R) Lola Petticrew, Hazel Doupe, Anthony Boyle, Josh Finan and Maxine PeakeKaren McCrea/Shane O’Connor/Pip/Matt Nalton/Paul Husband
Their other credits includeDating AmberandBloodlandsand is represented by Hamilton Hodell and Range Media Partners.
Doupe can be seen next in the AMC seriesSanctuary: A Witchs Tale.
She is represented by Curtis Brown and McFarlane Chard.

He can currently be seen inMasters of the Airfollowed byManhunt,where he portrays John Wilkes Boothe.
He is represented by Hamilton Hodell, WME, Tapestry London and Johnson Shapiro Slewett & Kole.
Finans credits includeThe Responderand NetflixsThe Gentlemenseries.
He is represented by Insight Management & Production.
Peake credits includeFunny Cow, The Theory of EverythingandBlack Mirror: Metalhead.
She is represented by Maison 2 and Tapestry London.