Watch: The first trailer of CBS's new Supergirl series starring Melissa Benoist; with a glimpse of Dean Cain and Helen Slater!

After announcing Supergirl being picked up into a series early last week by CBS for Mondays at 8pm in this coming Fall 2015-2016 season starting November, the network has released a few images stills (via Kryptonsite) featuring its main star Melissa Benoist as Kara Zor-EL aka Kara Danvers. It also released the first trailer, which is about 6 and 1/2 minutes long! Loved it! It's super too with the Krypton origin, a blurry Superman cameo (Hmm, I wonder who that Superman is in the trailer...could it be Henry Cavill's?!!) and a quick glimpse of Lois & Clark's Dean Cain and Supergirl's Helen Slater, which both will make special appearances in the series.

The show also stars Mehcad Brooks as James Olsen and Calista Flockhart as Cat Grant, along with Chyler Leigh, and Jeremy Jordan.

Check out and watch the first trailer for Supergirl and see the description below...

A few Random selected Supergirl Screen Captures featuring Dean Cain and Helen Slater

 Supergirl promotional Stills featuring Melissa Benoist 

as Supergirl/Kara Zor-El/Kara Danvers

 (source: CBS)

Here's CBS's official description for Supergirl:

SUPERGIRL is an action-adventure drama based on the DC Comics character Kara Zor-El (Melissa Benoist), Superman’s (Kal-El) cousin who, after 12 years of keeping her powers a secret on Earth, decides to finally embrace her superhuman abilities and be the hero she was always meant to be. Twelve-year-old Kara escaped the doomed planet Krypton with her parents’ help at the same time as the infant Kal-El. Protected and raised on Earth by her foster family, the Danvers, Kara grew up in the shadow of her foster sister, Alex (Chyler Leigh), and learned to conceal the phenomenal powers she shares with her famous cousin in order to keep her identity a secret. Years later at 24, Kara lives in National City assisting media mogul and fierce taskmaster Cat Grant (Golden Globe Award winner Calista Flockhart), who just hired the Daily Planet’s former photographer, James Olsen (Mehcad Brooks), as her new art director. However, Kara’s days of keeping her talents a secret are over when Hank Henshaw (David Harewood), head of a super-secret agency where her sister also works, enlists her to help them protect the citizens of National City from sinister threats. Though Kara will need to find a way to manage her newfound empowerment with her very human relationships, her heart soars as she takes to the skies as Supergirl to fight crime. Greg Berlanti (“The Flash,” “Arrow”), Ali Adler, Sarah Schecter and Andrew Kreisberg are executive producers for Berlanti Productions in association with Warner Bros. Television. The pilot was directed by Glen Winter (“Arrow”).

TV Casting News: Dean Cain joins the upcoming CBS pilot 'Supergirl'

Here's a super TV casting news I can get super excited and has a reason to watch the new series about...former Lois & Clark's Dean Cain along with former Supergirl movie star Helen Slater has reportedly landed a guest-starring roles in the upcoming CBS pilot Supergirl starring Melissa Benoist (Glee, Whiplash).

Here's the TVLine article below...

Supergirl Casts the Heroic Helen Slater and Dean Cain in Top-Secret Roles

How’s this for super-meta casting: Helen Slater and Dean Cain have landed guest-starring roles on CBS’s Supergirl, TVLine has learned.

Slater, of course, played Kara on the big screen in 1984’s Supergirl, while Cain starred as the Man of Steel in ABC’s Lois & Clark: The New Adventures of Superman. And both guest-starred on the WB/CW Superman drama Smallville, Slater in the role of Clark/Kal-El’s Krypton mom Lara, and Cain as the immortal Dr. Curtis Knox.

Details on who the pair will be playing in the pilot are being kept under lock and key (but feel free to speculate away in the comments). 

As previously reported, Laura Benanti (Nashville) will play Kara’s birth mother, Alura Zor-El, who continues to guide her daughter across space and time.

The cast also includes Grey’s Anatomy‘s Chyler Leigh as Kara’s foster sister Alex, Homeland‘s David Harewood as Department of Extra-Normal Operations chief Hank Henshaw, Ally McBeal‘s Calista Flockhart as Kara’s boss Cat Grant and Desperate Housewives‘ Mehcad Brooks as Jimmy Olsen.