The theater offers a wide range of professional entertainment, including classical music, jazz, ballet, Shakespeare, musical theater, and classic films, with free performances running from March through November, where the general public can relax in a covered seating area or enjoy a pre-performance picnic on an amphitheatre-style hillside.

[2] The theater building itself consists of a 64' x 41' stage; 54 line sets for hanging lights, curtains, and scenery; an orchestra pit which can be raised and lowered; dressing rooms; offices; a full complement of theatrical equipment; and a 110-ton air conditioning system for cooling the performance area.

[2] In 1922, the original theater was designed by William Ward Watkin as an amphitheater surrounded by twenty Corinthian-style limestone columns and built by Tom Tellepsen.

[3] The 1968 Miller Theatre building was then refurbished starting in 1996, jointly funded by the city of Houston and Friends of Hermann Park.

In addition, a small stage was added to the east end of the facility, playing to a newly incorporated open plaza area.