Marsh River Singers: The Marsh River Singers were formed through the efforts of George Wildey and Dottie Bickford and have opened the regular season at the theater since 2002. The Singers released a CD of songs from of Broadway favorites such as Oklahoma, Annie Get Your Gun, South Pacific and Carousel

Marsh River Singers and Friends: The Marsh River Singers and Friends evolved out of the original Singers, adding some new faces to the group and new instrumental and vocal elements.

Marsh River Junior Players: The Marsh River Junior Player are a group of local young people who aspire to be involved in theater. The Junior Players are directed by Sonia Richardson, with the assistance of Carla Ellis and Julie Saucier. The Junior Players have presented “Cinderella” and “Annie” and are preparing the “Wizard of Oz” for the Spring of 2006

The Community Players: The Community Players were created in 1995 by two veteran performers, Bert & Elizabeth Fafard. The Players performances pre-date Marsh River Theater with the first performance of Bert Fafard’s original musical “Holiday in Maine” being presented at the Varney Memorial Building. The Players are the most prolific group to perform at MRT.