When Captain James T. Kirk, Commander Spock, and Dr. Leonard McCoy beamed down to Sarpeidon in 2269, Atoz mistook them for natives and sent them into Sarpeidon's past along with the rest of the population, in order to escape the destruction of Beta Niobe. (TOS episode & Star Trek 4 novelization: All Our Yesterdays; TOS - The Yesterday Saga novel: Yesterday's Son) Atoz was played by actor Ian Wolfe.