actuator apparatus having a drive element which can tilt and / or pivot in a predetermined manner in response to electrical activation and which is formed such that it can be contacted by an output partner in order to transmit mechanical drive energy , wherein the drive element , as a connection element , is operatively connected to two expansion units , which are formed by means of magnetic shape - memory alloy material , such that the connection element executes a tilting and / or pivoting movement in response to an expansion or contraction movement of one of the expansion units , expansion or contraction movement being produced by the electrical activation and also a magnetic field which is generated by said electrical activation .