It’s still untitled, but the presumed “Brave and the Bold” style team-up series that is spinning out of Arrow and The Flash continues to add to its core cast.

Announced today via Deadline, Dominic Purcell, who played Heatwave on The Flash, will once again be donning Mick Rory’s goggles in the new series.

According to Entertainment Weekly, he’ll be re-teaming with his former Prison Break co-star Wentworth Miller, who plays Leonard Snart/Captain Cold.

In addition to Purcell and Miller, the spin-off will also feature Brandon Routh (Ray Palmer/The Atom), Victor Garber (Firestorm/Martin Stein), and Caity Lotz (Sara Lance/the first Black Canary). There’s still no word as to whether Robbie Amell, who plays Ronnie Raymond, will be joining Garber as the other half of Firestorm.

The CW’s third series in their DC-based superhero universe is expected to debut mid-season next year, as it has not been included in the upcoming pilot season.