Gregory Prest is a Canadian actor, playwright and theatre director. He is most noted for his role as Simon in the comedy television series Pillow Talk, for which he and his castmates received an ensemble nomination for Best Performance in a Variety or Sketch Comedy Program or Series at the 11th Canadian Screen Awards in 2023, and as a Dora Mavor Moore Award winner for Best Direction in a Musical in 2019 for Soulpepper's musical Rose.