‘High School’ Stars Railey and Seazynn Gilliland on Being Plucked From TikTok to Play Tegan and Sara — Without Any Musical Experience

Before 21-year-old twins Railey and Seazynn Gilliland were cast as real-life indie-pop sister duo Tegan and Sara Quin in Amazon Freevee’s “High School,” they were working at Round Table Pizza in Fresno, Calif., and making goofy TikToks on the side. Neither really knew about the Grammy-nominated band —except when their growing TikTok fan base would […]