Gillian Anderson brings uncanny ‘Iron Lady’ to ‘The Crown’

This combination of photos shows Gillian Anderson, portraying Margaret Thatcher in a scene from the fourth season of "The Crown," right, and Margaret Thatcher in Scarborough, England on March 18, 1989. (AP Photo, left, and Netflix)

LOS ANGELES — Gillian Anderson’s portrayal of British political leader Margaret Thatcher in “The Crown” was built step by step, from distinctive voice to helmet-hair wig to padded wardrobe.