Blankety Blank Guest cast, played by Isla St. Clair Episode 1x04: Show 4 (Feb 8, 1979) Episode 1x08: Show 8 (Mar 15, 1979) Episode 1x14: Show 14 (Apr 26, 1979) Episode 2x07: Show 7 (Oct 18, 1979) Episode 3x05: Show 5 (Oct 2, 1980) Episode 3x11: Show 11 (Nov 13, 1980)