Jack Barsky was interviewed for the behind-the-scenes podcast for The Americans. I think he might work as a consultant for the show, but I'm not sure.
http://www.slate.com/blogs/browbeat/2016/03/24/a_former_kgb_...
http://www.slate.com/blogs/browbeat/2016/03/24/a_former_kgb_...
Would definitely recommend it if you liked Deutschland 83.