Following an Ontario government report in 1967 which recommended the creation of a theatre company in Sudbury, local arts patrons Sonja Dunn, Carolyn Fouriezos, Bill Hart, Bob Remnant and Peg Roberts raised funds to bring the Gryphon Theatre Company of Barrie to Sudbury for a production of Neil Simon's Come Blow Your Horn.

[2] Over the next number of years, the STC staged plays and children's theatre workshops at Fraser Auditorium, Cambrian College and the Inco Club.

Its success was largely due to the dedication of long-standing artistic director Tony Lloyd, who made it his mission to build a theatre for the people of Sudbury.

In 1980, the city of Sudbury donated a parcel of municipal land on Shaughnessy Street near Civic Square to the STC for the construction of their own permanent 289-seat theatre.

[3] In 2015, the theatre underwent a modernization that included renovations to the lobby and an updated and improved lounge area.