Robert Crater (2266)
Professor Robert Crater was a reclusive Federation archaeologist and husband to Nancy Crater.
In 2261, Robert and Nancy began an expedition on M-113 to conduct a survey of the planet's many ruins. Unknown at the time of the Crater expedition, a single surviving member of the "salt vampire" race continued to live on the planet. It eventually killed Nancy and continued to live along with Robert until 2266. When the USS Enterprise visited for a routine check, Crater was visibly upset and wanted them to leave. When it was discovered that a creature was killing them, James T. Kirk and Spock tried to apprend him. He resorted to violence but was subdued. He explained about the salt creature equating them to the buffalo that was wiped out on Earth. That the creature was the last of its kind and deserved to live. Robert was eventually killed by the "salt vampire" aboard the USS Enterprise. (TOS: "The Man Trap")