It was founded in 1975 by Tom Kerr under the name Western Canada Youth Theatre.
[1] It currently offers seven live performances throughout the season; five mainstage and two alternative/experimental productions.
Sagebrush Theatre is shared with the Kamloops School District.
[2] The current artistic director is James MacDonald.
[3] Previous artistic directors include Tom Kerr, Frank Glassen, David Ross, Michael Dobbin, John Cooper, Jeremy Tow, and Daryl Cloran.