DC’s upcoming The Flash solo movie is seen as a send-off to the old DCEU before the new guard is established with James Gunn and Peter Safran’s Gods and Monsters movement. Actor Ezra Miller was cast as Barry Allen/The Flash when they were just 22 and after numerous delays and false starts, The Flash finally hits theaters in June.

The film’s first trailer showed Barry disrupting the main timeline–as he tends to do now and then–and showed the return of Michael Shannon’s General Zod a decade later. The obvious notable cameos are Michael Keaton as Batman after over 30 years, and Sasha Calle’s Supergirl, but there’s still one more that hasn’t been seen.

Ben Affleck went on the Smartless podcast to promote the upcoming Nike biopic Air (via THR), and revealed another central DC character that appears in the film. Fans can probably guess based on the other recent DC recent movie, but we’ll keep the reveal below this spoiler warning.

Spoiler warning for The Flash following this.