Letters from Paul Sullivan, Danny Carter, Kathleen Casey, Carol Daughtry, Philip Lourie, Harold Edwards, Blake Walsh, Carl Davidson and Marge Marion.
Script credit from Martin O'Hearn. Ink credit from Pat Lang and Bob Hughes. Script credit originally given to: "Otto Binder?" Ink credit originally given to both Forte and "George Klein?". Showcase Presents: Supergirl (DC, 2007 series) #1 credits - writer as Otto Binder and inker as George Klein.
Supergirl's mother Alura is shown but not named in story.