Like most DC Comics characters, there have been a number of different Supergirls over the years with various origin stories. In "The New 52", Kara Zor-El arrives on Earth in her late teens/early twenties, but in the upcoming CBS adaptation, she actually arrives at the age of twelve. According to the official description, this version of the character "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." It's clear then that Supergirl will take on her heroic persona pretty early on, but whether or not Superman exists in this world isn't clear. Casting is currently taking place, with a Caucasian actress being eyed between the ages of 22 to 26 to play the 24 year old Kara Danvers (no relation to Marvel's Carol Danvers, we're sure).
That's not the only leading role that CBS are currently hoping to fill as they're also looking to cast, "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." These are obviously some major changes to the source material, but it should be interesting to see how the pilot (written by Ali Adler (No Ordinary Family) and Greg Berlanti (Arrow) comes together. We know Supergirl will fly, but will she be wearing a costume? Be sure to sound off with your thoughts on these details in the usual place!