Supergirl is the cousin of Superman, AKA Clark Kent, of Argo City, Krypton. She was sent to Earth to protect Baby Kal-el, who is really Superman. Kal-El is Superman's birth name. Kara counts as part of Clark's family, even though Kara is the daughter of Zor-El, Jor-El's brother who tried to kill him and steal his wife, Lara. Kara is also called Kara Kent, and Kara Zor-El. Kara is a German word meaning Gem. Lara is the mother of Clark, (superman) the aunt of Kara, (Supergirl) and the wife of Jor-El. Martha and Jonathan Kent arn't Superman's real parents, but were his "foster parents" when he crashed on Earth.
Old Answer: Kara Zor-El
yes
Melissa Benoist plays Supergirl on the CW's show "Supergirl".
Black Supergirl
He did not act in Supergirl
SuperGirl saves the world like SuperMan.
Supergirl first appeared in Action Comics #252 (May 1959) titled The Supergirl from Krypton
Jeannot Szwarc directed Supergirl.
Supergirl - Matrix - was created in 1988.
Supergirl - film - was created in 1985.
Superman Supergirl was created in 1998.
Helen Slater starred as Supergirl in the movie Supergirl.
May 7th! Many declare that day as Supergirl day.