Mary Megan "Mare" Winningham (born May 16, 1959) is an American actress and singer-songwriter. She is the recipient of two Primetime Emmy Awards and has been nominated for an Academy Award, two Golden Globe Awards and a Tony Award.
St. Elmo's Fire centres on a second-generation clique of new students of Washington, D.C.'s Georgetown University, and their adjustment to university life and the responsibilities of adulthood.