In which DC Comic story did the character played by Teagan Croft in Titans first appear?
Titans (2018 TV series): Titans is an upcoming American television series that will air on an unnamed DC Comics digital service, based on the DC Comics team of the same name. Titans (2018 TV series):  Akiva Goldsman, Geoff Johns, and Greg Berlanti created the series, which sees Brenton Thwaites star as Dick Grayson, the leader of the Titans, alongside Anna Diop and Teagan Croft as Starfire and Raven, respectively. Starfire (Teen Titans):  The name "Starfire" first appeared in a DC Comic in the story "The Answer Man of Space," in Mystery In Space #73, February, 1962, written by Gardner F. Fox.
The Answer Man of Space