Grant Gustin has been snubbed from 2023's The Flash, despite building a brilliant legacy over his ten years portraying Barry Allen, a.k.a. the Flash, on The CW. Gustin debuted as Barry Allen in 2014 after receiving a backdoor pilot on The CW's premiere DC series, Arrow, and made several guest appearances on The CW's other DC series, including Supergirl, Legends of Tomorrow, and Batwoman. The Flash season 9 was announced to be the final season of the successful series, kicking off in February 2023, with the finale airing in summer 2023, marking ten years since Gustin first sported his superhero suit as the speeding protector of Central City.
While Gustin dominated The CW's DC series' as the Flash, Ezra Miller was cast in the role for the DCEU, making cameo appearances in Batman v Superman: Dawn of Justice and Suicide Squad before making their starring debut in 2017's Justice League. 2023's The Flash will mark Miller's first solo film as Barry Allen and will reset the DC Universe, allowing James Gunn and Peter Safran to revitalize the franchise starting with 2025's Superman: Legacy. Initially, it was thought that Grant Gustin could cameo in The Flash, especially due to the timeline-jumping storyline for the upcoming film, but these hopes might have been dashed by the man himself.
