You may have seen this sometime last week, but Bruce Hyde, a guest star on Star Trek (the original series) has died. His most famous moment on the first Enterprise was in the episode, "The Naked Time" in which the Enterprise crew were infected by an organic chemical compound from a dying planet that attacked the reason centers of the brain in a way very similar to alcoholic drunkenness.
Lieutenant Kevin O’Riley, played by Hyde, nearly destroyed the Enterprise by taking over Engineering, locking himself in, and turning the warp engines completely off, forcing a never-before-attempted full-power restart.