Golden Glider got off to much later start, not debuting until 1977’s The Flash #250.
Captain Cold primarily wields a cold gun against the Flash, while Golden Glider originally battled the Fastest Man Alive using specialized skates and jewel-themed weapons.
As for The Rogues, there are plenty of super villains to choose from to form the big screen version of the group, and if Captain Cold and Golden Glider are among their ranks, then it will take more than super speed for Flash to take them down.
So far the only other character who has been confirmed to appear in The Flash is Iris West, who will be played by Kersey Clemons.