CBS has released casting details about its upcoming "Supergirl" series that revealed information about the show's leading ladies. 

TV Line has published the official descriptions of Kara Zor-El (alias Kara Danvers) and her foster sister Alexandra “Alex” Danvers. Both women are in their mid-20's and are based off of the DC Comics mythology.

No word as to when fans will get to see the pilot episode for the CBS series, but the casting process is underway.

Check out the descriptions published by TV Line below:

What fans should expect from Kara Zor-El:

“For Kara Zor-El aka Kara Danvers, the show is eyeing Caucasian females, age 22 to 26, to play 24. As the series’ mythology goes, Kara at age 12 was sent from her dying home planet of Krypton to Earth, where she was taken in by the Danvers, a foster family who taught her to be careful with her extraordinary powers.

“After repressing said skills for more than a decade, Kara is forced to bust out her super moves in public during an unexpected disaster. Energized by her heroism for the first time in her life, she begins embracing her abilities in the name of helping the people of her city, earning herself a super moniker along the way.”

A little background on Alex Danvers:

“The other lead role currently being cast is that of 26-year-old Alexandra “Alex” Danvers, Kara’s gorgeous, brilliant, science-minded foster sister. Growing up, Alex was partly jealous of her sibling yet also fascinated by her abilities, prompting Alex to learn as much as she could about alien anthropology, sociology and culture. Today, Alex works for a secret government organization and, alongside her heroic sis, will face many challenges, both mundane and super.”