It looks like Ben Lewis is joining his on-screen sis, Katherine McNamara, as a series regular for the final season on Arrow.

TVLine confirmed that the actor, who plays a future William, the son of Oliver Queen, will continue his role in the final 10 episodes.

Joseph David-Jones, who plays future Connor Hawke, was also promoted to series regular last month.

John Jr., the grown up role of Diggle and Lyla’s biological son, is still yet to be cast for the final season.

Arrow returns in October on The CW.