It's official: Legends of Tomorrow has found their Stargirl. According to an exclusive from IGN, it looks like the CW's hit-show has cast actress Sarah Grey to play the heroine.

Set to star in the series' second season, Stargirl will join heroes Hourman (Patrick J. Adams), Dr. Mid-Nite, and Obsidian. The latter two characters have yet to be cast, but EW was able to confirm that Commander Steel would be played by Matthew MacCaull. Amaya Jiwe will also be joining The Justice League of America as Vixen.

For those unfamiliar with Stargirl, the heroine was created by Geoff Johns back in 1999. Also known as Courtney Whitmore, Stargirl receives her stellar powers by wielding Starman's Cosmic Staff and donning the Cosmic Converter Belt which gives her agility and enhanced reflexes. Stargirl stands as one of the JSA's most recognizable characters, and Whitmore has even appeared in other live-action DC adaptations before. Most famously, actress Britt Irvin played the hero in several episodes of Smallville during Seasons 9 & 10. The hero has also been featured in several of DC's animated series like Justice League Unlimited.

With Legends of Tomorrow's JSA line-up filling out, fans are growing more excited for Legends of Tomorrow's upcoming season. The show did tease during this year's Comic-Con that the JSA would stand as heroes this season while their villains would be found in the Legion of Doom. Familiar baddies like Malcolm Merlyn, Captain Cold, Damien Darhk, Reverse Flash will make up the team of villains.

A relatively new actress, Sarah Grey is probably best known for being cast in the upcoming Power Rangers film by Lionsgate. Playing Amanda, the Canadian actress began her film career back in 2013 when she landed a role in Cinemanovels. Since then, Grey has gone on to star in projects like Almost Human, Bates Motel, and iZombie.

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