 He became involved in theater because of his involvement with the infamous Lino Brocka, who introduced him to PETA.After Martial Law was declared, he helped sustain PETA, as an actor, playwright and Trainer in CITASA.In the late 1980s, when he decided to stay in his hometown Tayabas, Nadres formed the theater group SUSI (Sanayan at Ugnayan sa Sining), which revived the traditional performances of Carillo, Santacruzan and Sarswela.