The upcoming Titans TV series continues casting as Seamus Dever has joined the cast.
Deadline reports the Castle alum has joined Titans in a recurring mystery role on the series.
Titans also stars Brenton Thwaites As Robin, Ryan Potter as Beast Boy, Teagan Croft as Raven, Anna Diop as Starfire, Alan Ritchson as Hawk and Minka Kelly as Dove.
Titans follows a group of young soon-to-be super heroes recruited from every corner of the DC Universe. In this action-packed series, Dick Grayson emerges from the shadows to become the leader of a fearless band of new heroes, including Starfire, Raven and many others. Titans is a dramatic, live-action adventure series that will explore and celebrate one of the most popular comic book teams ever.
Titans is written by Akiva Goldsman, Geoff Johnsand Greg Berlanti. Goldsman, Johns, Berlanti and Sarah Schechter are executive producers of the series from Weed Road Pictures and Berlanti Productions in association with Warner Bros. Television.
Here is previously released images for Titans featuring Brenton Thwaites As Robin and Alan Ritchson as Hawk with Minka Kelly as Dove: