Counterpart is an espionage series about a mysterious world hidden beneath the surface of our everyday existence...
Howard Silk (J.K. Simmons) is a lowly cog in the bureaucratic machinery of a Berlin-based United Nations spy agency. When Howard discovers that his organization safeguards the secret of a crossing into a parallel dimension, he is thrust into a shadow world of intrigue, danger and double cross...where the only man he can trust is his near-identical counterpart from this parallel world. The show explores themes of identity, fate and lost love, posing the eternal question, "What if our lives could have been different?"
Sounds like fun, right? A whole world to explore, with yourself as a mirror to the what-if questions in life.
I've loved everything I've seen J.K. Simmons in (Oz, Law & Order series, Juno) - although he's such a good actor that I haven't dared to watch Whiplash yet. And the characterization between the Howards is incredible: the way they walk, talk, hold themselves makes it easy to see which Howard is in the scene.