Tom Baldwin is one of the lead NTAC agents responsible for investigating The 4400, along with his partner Diana Skouris. Prior to joining NTAC, he worked as an agent for the FBI. Tom's professional responsibilities sometimes conflict with his personal connections to the 4400.
His nephew Shawn is famous for his healing ability and served as the leader of the 4400 Center, an organization often at odds with NTAC. And his son Kyle spent three years in a coma, a result of trauma he suffered the night Shawn was abducted. The emotional strain from this tragedy hastened the demise of Tom's marriage.