Wikimedia Commons/Wednesday Netflix TV Game of Thrones star Lena Headey joins Wednesday Season 3! Meet the new guest stars, including Andrew McCarthy & James Lance, adding fresh intrigue to Neverm... April 11, 2026 AceShowbiz - Netflix's Wednesday is expanding its cast for Season 3 with an exciting lineup of guest stars, including Lena Headey, best known for her iconic role as Cersei Lannister on HBO's Game of Thrones. The streaming giant confirmed that Headey will appear as a guest star, adding a new layer of intrigue to the series.