The sci-fi epic has added a trio of new cast members to its upcoming season, which has officially begun production.

Netflix’s hit sci-fi show 3 Body Problem is bringing in some new faces for its second season, including a star from Game of Thrones. According to reports, Alfie Allen, known for his role as Theon Greyjoy,

Netflix is staging a Game of Thrones reunion. Alfie Allen has joined the cast of 3 Body Problem, reuniting TV’s erstwhile Theon Greyjoy with Thrones creators David Benioff and D.B. Weiss. Character details are being kept under wraps.

Doumit is best known for starring in Prime Video's The Boys and its spin-off Gen V as Victoria Neuman, a politician who advocated for the end of supes (before it was revealed that she was one herself). She's set to star in the M3GAN spin-off SOULM8TE, though her role is still being kept under wraps.

Now, Netflix has confirmed that production on season 2 has begun—but that’s not all. As announced by Netflix today, Game of Thrones alum Alfie Allen has joined the cast of 3 Body Problem season 2 in a mystery role.