Dennis Aderholt is a recurring character on the FX series The Americans. He is an FBI counterintelligence agent who specializes in hunting down Soviet spies operating on American soil. He works closely with Stan Beeman. By 1987, Dennis has become the head of the counterintelligence division, a job previously held by Agent Bartholomew, Agent Wolfe and Agent Gaad.


Dennis Aderholt and his younger brother were raised in Oakland, CA, by their father, who was a school janitor. Their mother left the family when Dennis was five years old.

After graduating high school, he clerked in the San Francisco FBI office. He obtained his college undergraduate degree at UC Berkeley, attending classes at night.

He has an ex-wife; he later states that he was the one who ended their marriage. By 1987, he has remarried. He and his second wife Janine have a young son, Calvin.