- For other uses, see Ryan.
In 2273, Lieutenant Ryan had recently been assigned to the USS Enterprise. She filled in for Lieutenant Commander Hikaru Sulu as helm officer when he was sent into Japan's past by the omnipotent being Weyland. Ryan warned Captain James T. Kirk that the Enterprise's orbit around Cragon V was beginning to decay, and detected the Klingons Kral and Vladra on sensors when they had been ejected from an airlock of the IKS Ghargh. (TOS novel: Home Is the Hunter)