Teatro Compañero is one of the school's interest clubs for the aspiring actors and actresses of SRCCMSTHS. It gives an avenue for students who are passionate in Theater Arts and gives space for students who have talents in acting, singing, set design, writing, and directing. Once a new academic year comes, the Teatro Compañero always opens acting auditions for aspiring actors and actresses open for all SRCCians for an annual theater production to be performed in the school's auditorium.