I could have made this a Current Talk topic, but I thought it might be more fun to make it a game.
Take an actor on Dark Shadows, and imagine him or her in a different, already existing Dark Shadows role. The next game player takes the actor who actually did play that already existing role, and imagines him or her in another already existing Dark Shadows role. And so on.
There are no age, gender, or availability requirements. Denise Nickerson is allowed to play Amadeus Collins, and Kate Jackson is allowed to play Leviathan Alexander. Also, if a given role has been suggested for one actor, it can be suggested later on for another actor.
Example: Robert Gerringer played the beloved Dr. Woodard for most of that character's run, but I would have liked to see him playing the not-so-beloved Jason McGuire. Jason McGuire was played by Dennis Patrick. In what other role would it have been fun to see Dennis Patrick?
The next step is: I would have liked to see Dennis Patrick playing Grandmama Edith in 1897. Grandmama Edith was played by Isabella Hoopes. In what other role would it have been fun to see Isabella Hoopes?
Who wants to re-cast Isabella?