Grant Gustin's 'Flash' Co-Star Dominic Purcell Signs On For 'Arrow' Spinoff

Grant Gustin chats on the phone while touching down at the airport on Monday (March 16) in Vancouver, Canada.

The 25-year-old actor is back in town to work on his CW show The Flash after promoting the show at PaleyFest over the weekend in Los Angeles.

PHOTOS: Check out the latest pics of Grant Gustin

It was just announced that Dominic Purcell will be joining a Flash/Arrow spin-off.

Dominic would reprise his role as Mick Rory, “a pyromaniac who finds an outlet for his obsession with fire when he teams up with Leonard Snart/Captain Cold (Wentworth Miller) and becomes the villain known as Heat Wave.”