Ryan Leslie

Ed Frank Leslie was a human Starfleet officer who served during the 23rd century. In the 2260s, Lieutenant Leslie served in the operations division aboard the USS Enterprise. Leslie was cross-trained to perform a variety of duties aboard the Enterprise from helm and navigation duties, to security and engineering.

On one of his first assignments aboard the Enterprise, Leslie joined the security team that accompanied Captain James T. Kirk to Delta Vega to watch over Gary Mitchell contained in a holding cell on the planet. (TOS episode: "Where No Man Has Gone Before").

Due to his great experience, Leslie was often trusted to command the Enterprise when Captain Kirk and the other senior staff were off the ship. He was in command when the Enterprise encountered Trelane and again when they encountered Lazarus. (TOS episodes: "The Squire of Gothos" and "The Alternative Factor").

Leslie was stationed at the engineering console on the bridge during the Enterprise 's discovery of the planet Gateway. (TOS episode: "The City on the Edge of Forever" and novel: Crucible: The Fire and the Rose).

Leslie nearly died during a mission to Argus X in 2268, when he was attacked by the dikironium cloud creature. The creature had drained all of Leslie's red blood corpuscles, but Doctor Leonard McCoy was able to save his life, and Leslie made a complete recovery. A short time later Leslie returned to active duty. (TOS episode: "Obsession")