Terence Gleeson is a Philadelphia-based Equity actor who trained at Mason Gross School of the Arts at Rutgers University in New Brunswick, New Jersey. Most of his professional work has been with regional theater companies such as the Shakespeare Theatre of New Jersey in Madison, NJ and the Arden Theatre in Philadelphia; he has also performed in Edinburgh, Scotland with NYC's Gorilla Repertory Theater Company.

Terry taught theater arts at Neumann University in Aston, PA, where he founded and for several decades directed the university's theater troupe, staging scores of plays and musicals. Now retired from teaching and directing, Terry is able to focus on his acting career, work on his musical performance, hang out with his children and seven grandchildren, and travel with his wife JoAnn.