We Poseidon's Playhouse are Hightower High School's Thespian troupe #5864. Established in September 1998. Our troupe members are apart of the International Thespian Society. ITS is a world-wide theatre honor society.  The International Thespian Society  is a division of the Educational Theatre Association. We are proud to be one of 3600 secondary Thespian Society troupes across the country.