Sierra Burgess Is a Loser Cast
Sierra Burgess Is a Loser: This Cast Is So Good, You'll Wish It Was September Already
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Shannon Purser — the Stranger Things fan favourite Barb and Riverdale's Ethel Muggs — will be taking on the title role of Sierra Burgess, a smart and driven high schooler who forms a connection via text message with a popular athlete who thinks she's someone else.