Jean-Marcel hasnt worked there in almost 2-3 years? He "left" as part of a major re-org. Hence the return.
Also, while it is admirable to try and get a hold of John Pleasants, he is only the CO-President of Disney Interacftive Media Group. He runs the Video Games/Mobile side of the business known as Disney Interactive. The head of Production is Bill Roper, he reports to Pleasants. If you want a shot at them, you should try Roper first.
BUT, who the correct person to contact is Jimmy Pitaro, he is the other CO-President, runs the Online business, including Online Games,which are web based and facebook based games.
Pitaro and PLeasants are both based in Palo Alto, but you have to use the main corporate mail address (which you have) to get through them.
PS,
I know this because I worked at Disney Interactive until a couple of months ago. Good Luck.