I have now found out that other original Fame cast members (from the original movie and series) were at the Fame premiere. Antonia Franceschi, Maureen Teefy, Lee Curreri, Valerie Landsburg and Carlo Imperato along with Erica Gimpel and Debbie Allen were there. Check out the video below. Debbie, Antonia, Valerie and Erica are interviewed, towards the end. Carlo can be seen behind them in the last few seconds.
Thanks to Leanne, for the video link.