Blankety Blank Guest cast, played by Gray O'Brien Episode 13x08: Show 8 (Jul 25, 1998) Episode 13x13: Show 13 (Sep 12, 1998) Episode 15x11: Show 11 (Mar 18, 2001) Episode 16x02: Show 2 (Feb 23, 2002) Episode 16x07: Show 7 (Mar 30, 2002)