Guys, people WE know are flying/driving to Toronto to see Stephanie. Meaning, we've probably called "Stephanie is playing Elphaba, and she was great in Boy From Oz, and was part of the original cast of Wicked in San Francisco..." They have to either be theater people themselves, or associate with theater people to really care who the heck is playing Elphaba.
Otherwise, for someone who has heard that Wicked is a great musical, and bought tickets, and knows nothing else - they don't know who Stephanie is. We all do. But no one else does.
Deet: Shira, I Love You!