#4. Jaco Peyper (South Africa)
Generally a safe pair of hands, the South African is an experienced referee who seems to have a good rapport with players. He also likes to keep the game flowing, something that fans do appreciate.
He was chosen to officiate in both the 2015 and the 2019 Rugby World Cups.
Outside of rugby, he is a trained lawyer and he and his wife Zenobia have two children together.