Justine Lupe is an American actress and producer from Denver, Colorado, who graduated from Julliard in 2011. She is best known for her role as Willa in HBO's Succession, as well as roles in a variety of films and television, most recently Mr. Mercedes, The Marvelous Ms. Maisel & The Luckiest Girl Alive. Justine Lupe is an American actress known for her work in both television and film. She has showcased her talent through various roles, earning recognition for her performances. Lupe gained attention for her role as Holly Gibney in the television series "Mr. Mercedes," based on the novel by Stephen King. She is also recognized for her portrayal of Willa, a young playwright entangled in the lives of the ultra-wealthy Roy family, in the critically acclaimed series "Succession."