While Secret Invasion is meant to be a series focused on Nick Fury and his adventures, it's introduced several great new characters. Sonya Falsworth, played by Olivia Colman, is one of the best because she's not who fans thought she was. A spy thriller like Secret Invasion thrives on twists, and where audiences expected a villain, they found a somewhat sadistic hero.
Source:https://www.cbr.com/olivia-colman-secret-invasion-character-surprises-fans/