A cathode ray tube includes an evacuated envelope having a panel portion having a phosphor screen, a neck portion and a funnel portion connecting the panel portion and the neck portion; an electron gun housed in the neck portion having a cathode, a first grid electrode, a second grid electrode, plural focus electrodes and an anode arranged in the order named and fixed in predetermined axially spaced relationship by two glass beads; a voltage-dividing resistor attached to one of the two glass beads for producing an intermediate voltage to be applied to a first one of the plural focus electrodes adjacent to the anode by dividing a voltage applied to the anode; and a metal conductor facing and attached to a second one of the plural focus electrodes to surround the voltage-dividing resistor and the one of the two glass beads, the second one of the plural focus electrodes being disposed upstream of the first one of the plural focus electrodes. The voltage-dividing resistor includes a first overcoat insulating film, a resistance element, an insulating substrate and a second overcoat insulating film stacked in the order named from the first overcoat insulating film facing the one of the two glass beads, and a portion of the second overcoat insulating film containing a region thereof facing the metal conductor is made locally thicker than a remainder of the second overcoat insulating film.