Supergirl has gone through various incarnations from comics to the screen over the decades. She's now portrayed by Melissa Benoist in a CBS television series of her own, with Helen Slater (the original movie Supergirl) and Dean Cain ("Lois and Clark'"s Man of Steel), as Kara Zor-El/Kara Danvers' surrogate parents.
Jimmy/James Olsen (Mechad Brooks) is a regular, though no longer employed by the Daily Planet. He now works with young Danvers for Cat Grant (Calista Flockhart), owner of Catco, a massive media corporation, located in National City. Lucy Lane (Jenna Dewan-Tatum), Lois' little sister (and in this instance, Olsen's ex), will make occasional appearances. On the other hand, Danver's surrogate sister, Alex (Chyler Leigh) will act as her inspirational constant.
There seems to be some debate, based on those I've conversed with these past months, as to whether the Girl of Steel should be portrayed in her more recent, sultry mode or in a traditional, golly-gee manner. Personally, I fancy both extremes, but see nothing wrong with the wholesome approach, which the trailer certainly conveys. Playing it by the heartfelt straight-and-narrow is good for family viewing, and really, when all's said and done, that's the most respectful way to depict the character, regardless of the lurid fantasies some of us may harbor for her. (Besides, there's always plenty of Laura Vandervoort "Smallville" footage to savor.)
Anyway, I'm looking forward to the premiere. As I've been doing with DC's live-action Flash, Green Arrow and "Gotham", I'll offer my occasional reflections on the continuing adventures of Kal-El's caring cousin.
(The only thing is: how will the producers continue to handle Superman's indirect presence in the grand scheme of the show? To me, that'll be tricky, but even if they stumble in the attempt, such shouldn't make the ride too less enjoyable.)