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Wireless sensor and actor networks consist of heterogeneous sensor and actor that connect together by wireless media. In these networks sensors find the physical events and send them to sink or actor for suitable action. One of important goals in designing of these networks is send data from the best path with low energy and increase the network's life time. In this paper three protocols for actor selection is proposed. At first and second protocols, network is single hop and actor selection is done during it. But, in third protocol, one life time parameter is attached to every packet that it becomes to zero upon arrive to first actor, and actor selection is done.