I would liked to have seen Count Petofi come back again as a villian too. Im not so sure about him replacing the part of Gerard though.
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Gerard played a villian but along with that he also played the part of a "ladies man" with quite a few love interests such as Daphne, Edith and Samantha. And I just can't picture Petofi taking his place and playing the same part. Petofi played a great villian but he was no ladies man.
They could have bought him back and had him team up with Gerard/Judah though, since they both wanted to destroy the Collins family. They both shared this common goal It would have been great to see these two battling it out to see who has the strongest power.
I wonder why they decided to never bring him back, since he was such a good villian and played the part so well. Maybe he didn't want to play the part again because he would have to wear that hot rug on his head along with that icky mustache and those thick eye glasses.
Cassandra