Sam was a research biologist who was posted on Deneva with his family. He was present when a ship from Ingraham B brought neural parasites to the planet. He was infected by the parasites like the rest of the colonists. Though it was painful his wife managed to resist the mind control and send a distress call to the Enterprise. When the Enterprise arrived it was to find Sam dead, with his wife dead soon after. The only survivor of the family was Sam’s son Peter Kirk.
He was portrayed by William Shatner.