We report on a novel low-power, large-displacement, vertical electrothermal actuator made of multiple materials, primarily silicon nitride, polysilicon, and nickel. The architecture of separated metal and nitride layers bypasses the limitation imposed by conventional bimorph actuators. A vertical tip displacement of can be achieved at a driving current as low as . The corresponding power consumption is . Devices with different combinations of parameter values are characterized and compared. At the end of the work, we compare our device with several selections from the archives.