Jonathan Kent, often referred to as 'Pa Kent', is a pivotal character in the Superman series. He is the adoptive father of Clark Kent (Superman) and the husband of Martha Kent. As a humble farmer living in Smallville, Kansas, Jonathan instills strong moral values in Clark, emphasizing the importance of using his powers for the greater good. His guidance and wisdom are crucial in shaping Clark's character, ultimately influencing his path to becoming Superman. Jonathan's role as a mentor and father figure remains central throughout the series, highlighting themes of family, responsibility, and humanity.