Robby Benson as Jeremy Jones

Glynnis O'Connor as Susan Rollins

Leonardo Cimino as Cello Teacher

Ned Wilson as Susan's Father

Len Bari as Ralph Manzoni

Chris Bohn as Jeremy's Father

Patricia Wheel as Jeremy's Mother

Ted Sorel as Music Class Teacher

Bruce Friedman as Candy Store Owner

Eunice Anderson as Susan's Aunt

Dennis Boutsikaris as Danny (uncredited)