Grey will soon be seen in the new Power Rangers movie, though not as one of the central heroes; she plays a character called Amanda. She has also had guest appearances on iZombie, Bates Motel and Lucifer, among many others.
Stargirl, aka Courtney Whitmore, first appeared in Stars & S.T.R.I.P.E. # 0 (1999) and was created by Geoff Johns, who is now one of the main motivating forces behind the CW’s Arrowverse. She wields a cosmic staff that allows her to manipulate energy and she can also fly. On screen she appeared in four Smallville episodes in seasons nine and ten, where she was played by Britt Irvin.
Meanwhile, Legends Of Tomorrow producer Phil Klemmer has told Comic Book Resources that, “[We] took the show apart, and rebuilt it piece by piece,” for season two. “We’re much more deliberate, just thinking about where is this going to take us. A lot of the story of season one felt like they were compulsory because we put certain story elements into motion. You killed Rip’s family, you’ve got to avenge that. We said that Vandal Savage is going to ruin the world, we’ve got to stop that. Oh, we revealed who our bad guy is, that doesn’t leave much room for mystery.”