“Supergirl” has finally arrived.

The first photos of Melissa Benoist in costume as Supergirl were released Friday, just as production begins on the CBS pilot, which is based on characters from DC Comics.

The costume (pictured) was designed by three-time Oscar winner Colleen Atwood, who also designed the suits for two other DC Comics television properties, “The Flash” and “Arrow” of the CW.

Atwood, who’s been nominated for Academy Awards an additional eight times, was also the costume designer behind “Into the Woods,” “Snow White and the Huntsman,” “Alice in Wonderland,” “Memoirs of a Geisha” and “Chicago,” among others.

“Supergirl,” in contention for the 2015-16 season, follows Kara Danvers/Kara Zor-El (Benoist, “Glee,” “Whiplash”), Superman’s cousin, at age 24, when she decides to embrace her superhuman abilities and be the hero she was always meant to be, after leaving Krypton and hiding her powers.

Other series regulars include Calista Flockhart (“Ally McBeal,” “Brothers & Sisters”), who will play Kara’s tough boss at CatCo, Cat Grant; Mehcad Brooks (“Desparate Housewives,” “True Blood”), who will co-star as Kara’s love interest, Jimmy Olsen; Chyler Leigh (“Grey’s Anatomy”), who’s been cast as Kara’s doctor sister, Alex Danvers; and David Harewood (“Homeland”), as supervillain Hank Henshaw, better known as Cyborg Superman in the DC Comics world.

Laura Benanti will appear in a major recurring arc, playing Kara’s birth mother, Alura Zor-El.

Helen Slater, who starred in the 1984 “Supergirl” feature, and Superman vet Dean Cain (“Lois & Clark: The New Adventures of Superman”) are set for secret roles.

The project hails from exec producers and writers Greg Berlanti (“The Flash,” “Arrow”), Ali Adler and Andrew Kreisberg. Sarah Schechter will also serve as an exec producer, and Glen Winter will direct the pilot. Berlanti Productions and Warner Bros. Television will produce.