Following the conclusion of Crisis on Infinite Earths, several different characters written as having no familial relationship to Superman have assumed the role of Supergirl, including Matrix, Linda Danvers, and Cir-El.
Mengikuti kesimpulan Crisis on Infinite Earths, beberapa karakter berbeda yang ditulis sebagai tidak memiliki hubungan keluarga dengan Superman telah mengambil peran Supergirl, termasuk Matrix, Linda Danvers, dan Cir-El.