Stephen Amell will return one more time as Oliver Queen, aka The Green Arrow, for the ninth and final season of The Flash. Amell is expected to appear in the ninth episode of the season, which would also feature recently confirmed guest stars David Ramsey, Keiynan Lonsdale, and Sendhil Ramamurthy reprising their respective roles as John Diggle, Wally West/Kid Flash, and Ramsey/Bloodwork. Following the news, Amell took to Twitter to immediately confirm his Arrowverse return: "Of course I’m coming back."

“As soon as our final season was announced, we knew we wanted Stephen to come back and reprise his iconic role as Oliver Queen,” said executive producer Eric Wallace. “After all, it was Oliver who originally launched Barry Allen on his heroic path. That’s why everyone on Team Flash felt so strongly that it was important to create a full-circle moment with Oliver’s return in the final season of The Flash. The result is an epic-yet-emotional episode we hope Arrowverse fans will enjoy. It’s all to say ‘thank you’ to everyone for watching and supporting our show throughout nine wonderful years. We absolutely cannot wait for everyone to see Grant and Stephen saving the world together again. And yes, there will be thrills, chills and tears.”

The Flash Season 9 stars Grant Gustin, Danielle Panabaker, Danielle Nicolet, Kayla Compton, Brandon McKnight, and Jon Cor, with Jesse L. Martin and Richard Harman set to recur. Season 9 will also feature guest stars Javicia Leslie and Nicole Maine as they reprise their Arrowverse roles as Ryan Wilder/Batwoman and Nia Nal/Dreamer.

Production on the final season, which will consist of 13 episodes, was scheduled to start in September 2022. The season is scheduled to debut this year. With the completion of Season 9, The Flash will be The CW’s longest running show in the history of the network. For comparison, “Supernatural” ran for 15 seasons, but began airing on The WB before it transformed into The CW. The Flash started its run in 2014 after the network became the CW.

Based on the characters from DC Comics, the series is from Bonanza Productions Inc. in association with Berlanti Productions and Warner Bros. Television, with executive producers Greg Berlanti, Sarah Schechter, and Todd Helbing.