The 22-hour series updates the comic-strip franchise created by Alex Raymond in 1932. It is slated for an August premiere with production beginning May 1 in Vancouver, Canada.
Johnson will play space-traveling adventurer Gordon, who is joined by companions Dale Arden and Dr. Hans Zarkov. Ordinary people thrust into extraordinary circumstances, they find themselves as Earth's last line of defense against the forces of the merciless dictator Ming.
Peter Hume wrote the first two episodes, which will be directed by Rick Rosenthal (Smallville).
Flash is being produced by Reunion Pictures under an agreement with King Features Syndicate, which owns the franchise. RHI Entertainment's Robert Halmi Sr. and Robert Halmi Jr. (SCI FI 's Legend of Earthsea) are executive-producing, with Hume also expected to executive-produce. Matthew O'Connor and Tom Rowe produce.