actress emma corwin portrays her in the fourth season of netflix's "the crown."n in london. >> lady diana spencer, your imagine industry. >> i was speaking. >> reporter: in the latest season of "the crown" -- >> oh, dear. >> reporter: -- the epic sag gaffe the british royal family. >> your majesty. >> reporter: diana finally makes her entrance. >> you're not what we expect from royalty. >> well, that's because i don't think of myself as royalty. you know, first and foremost i'm a wife and a mother. >> reporter: newcomer emma corwin plays the doomed princess who would charm the world and rock the monarchy. >> what sort of weight does that carry? >> i really struggled with that in the beginning because obviously suddenly felt like an enormous pressure and responsibility and made the realization this is a fictional portrayal of her and we are playing characters. >> reporter: famous characters played by famous actors. >> never in my wildest dreams di think one of my first job was be opposite olivia colman. >> if we didn't share duties -- >> olivia plays the queen, he