A good actor doesn't just act when he or she is speaking. Acting is reacting, and Stormi Demerson, a veteran of DFW theaters and star of recent productions at Amphibian Stage and Theatre Three, is expert at listening and reacting to the actors around her. Always enhancing the roles she plays with just the right touches of humor and vulnerability, Demerson is a strong, sure presence in any show. In Death Tax at Amphibian, she was a nurse crushed by the pressure of a Faustian bargain with a dying patient. In T3's By the Way, Meet Vera Stark, she played an aspiring actor in 1930s Hollywood, tired of being cast as mammies and maids, commanding the scene where her character railed against the racism of showbiz. Good acting, says Demerson, is good storytelling that goes beyond the relationship between the viewer and the viewed. "Our energies are dependent on one another," she says. "But I have a responsibility to help tell a story that will make the audience feel something when they leave."