Sydney Sweeney plays Cassie in HBO's Euphoria
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Sydney Sweeney: 20 facts about the Euphoria star you probably didn’t know
9. Sydney Sweeney plays Cassie in HBO's Euphoria
Sydney Sweeney is in HBO’s new teen drama Euphoria. She plays Cassie Howard, best friend of Maddy and sister of Lexie. In season 2, Cassie embarks on a problematic romance with Maddy's ex-boyfriend Nate Jacobs, putting her at odds with her best friend. She will be returning in season 3. [Photo via HBO]