A shape memory actuator system and control methods thereof are provided that include a shape memory actuator having a body made of shape memory material, with individual power conductors interfaced with a first portion of the body, and one or more individual ground conductors interfaced with a second portion of the body. A power source provides power to the individual power conductors. One or more controllers are provided for pulse controlling or regionally controlling a resistive heating current connection sufficient to impart shape memory to the body or regions of the body between the individual power conductors and the one or more individual ground conductors with the provision that the ground conductors are physically separated from the individual power conductors. Structures of shape memory actuators and methods of control are also provided.