Embodiments of the present disclosure provide techniques and configurations for a robotic apparatus with an actuator formed by multiple fibers, in accordance with some embodiments. In some instances, the robotic apparatus may include an actuator to cause a motion of a component of a robot. The actuator may include at least one fiber that may comprise a conductive pattern. The conductive pattern may be embedded in a sheet of elastic material formed into a layered structure. The fiber may expand or contract in response to an application of a voltage signal to the conductive pattern, to cause the motion of the component of the robot. The fiber may comprise multiple fibers combined in a bundle, to form the actuator. The layered structure may comprise a roll-like shape that may be free of hollow spaces. In embodiments, the robot may comprise the robotic apparatus. Other embodiments may be described and/or claimed.
