Leighton, Dr. Thomas
Caption: Dr. Thomas Leighton
Leighton was a researcher living on Planet Q with his wife, Martha. In 2246, Leighton's face was scarred during the massacre on Tarsus IV. In 2266, Leighton was killed by Lenore Karidian, fearing he might identify her father as Kodos the Executioner, the massacre's architect.