Jonas Bloch (born February 8, 1939) is a Brazilian actor. He is known for his television roles as villains. Bloch is of a Ukrainian-Jewish descent. He is the father of actress Débora Bloch. He is known for his roles in "Avaete, Seed of Revenge" (1985), "Tropicaliente" (1994), "Mango Yellow" (2002), and in "A Lei e o Crime" (2009).