This may be a moot point since the ascension of Joseph Kardinal Ratzinger to the Holy Seat as Pope Benedict XVI since he bears no resemblance at all to Pope John Paul II. And I know that I have stated differently in a previous thread. But ...
Gene Greytak played Pope John Paul II on - at least - ALF, Ally McBeal, Golden Girls, Picket Fences, SISTER ACT, The Wayans Brothers and numerous others, no doubt. Sometimes credited, sometimes un.
Would he count as a crossover link?
And which shows are missing from the above list?