Ella Rubin (left) and Bo Bragason in Sterling Point. The character is played by 24-year-old actress Ella Rubin, and it is her first leading role in a series. So, who exactly is Ella Rubin? Ella Rubin at the premiere of The Idea of You in 2024. Years later, she made her Broadway debut in The Rose Tattoo, where she played Tomei’s daughter again.