I'll start with two people from Charmed(that can be anybody,also guest stars) that have something in common. The following person says a fact that my second person has in common with someone else from Charmed.

For example:Alyssa Milano and Brian Krause acted in Charmed

Then the next person says:
Brian Krause and Shannen Doherty both have green eyes

So, the next person has to say something about Shannen Doherty and someone else that had something to do with Charmed(can be characters,actors, anything)