This is a game where you provide actors/actresses who you best believe could pull off specific characters, savvy? Essentially, a user will post a character, then the next user will name who they believe to be the best actor/actress to play that role.
For Example: I post Kyle Rayner. The next user will post whoever they believe best fits, then they will post a character for the next person to choose and so on and so forth.
Feel free to post a picture of the actor/actress, but don't make it ridiculously big.
So the next user will post whoever they think could best play as the Riddler, then they post their own character choice.