As M. Night Shyamalan’s new psychological thriller series continues to amass its core cast, genre fave Toby Kebbell has been added to the series.

Via Deadline, the Dead Man’s Shoes, Prince of Persia and Fantastic Four actor has signed up to join Rupert Grint, Lauren Ambrose and Nell Tiger Free in the show. Said to-be-titled show has been given a ten-episode order by Apple, with Shyamalan serving as executive producer in addition to directing the first episode.

The full plot of this series has yet to be revealed, although we know that the tale will centre on a young family and their nanny. Toby Kebbell will be playing Sean Turner, the father of the family, with Lauren Ambrose as his wife. Game of Thrones’ Nell Tiger Free will be playing the nanny, while Grint is to play the younger brother of Ambrose’s character.

Expect more on this hotly anticipated series as it continues to develop.