Jonas Grenier is a fictional character portrayed by Steven Hauck in the TV series Madam Secretary.
They appear in 1 episodes out of a total of 120 aired
Episodes1
North to the Future
episode S4.E7 november 2017When a Russian dissident flees to the U.S. after contracting smallpox, Secretary of State Elizabeth McCord and retired U.N. Ambassador Kat Sandoval (Sara Ramirez) must work with Russian Foreign Minister Konstantin Avdonin (Yasen Peyankov) to contain the outbreak.