The St. Elmo’s Fire cast has worked quite a bit in the nearly four decades since it premiered. The movie, which was helmed by The Phantom of the Opera and The Lost Boys director Joel Schumacher, was one of two 1985 releases – along with John Hughes’ The Breakfast Club – that helped cement the idea of the Brat Pack, a term that was coined by David Blum in an article for New York magazine. The Brat Pack was a group of young actors who made a variety of movies about teens and young adults throughout the mid to late 1980s.
https://screenrant.com/st-elmos-fire-cast-actors-where-are-they-now/