Conrad Ricamora and other Filipino American actors are part of the cast of Center Theatre Group’s world premiere of “Soft Power.” Ricamora plays a Chinese executive who visits the US and falls in love with an American leader as the power balance between the two countries shifts after the 2016 US election. This “play with a musical” is written by David Henry Hwang with music composed by Jeanine Tesori and directed by Leigh Silverman.