Coma finally has a release date! The 4 hour mini series premieres on Monday, September 3rd, 2012 and concludes the following night on Tuesday, September 4th. It will be airing at 9PM ET/PT on both nights on the A&E Network.
It is still unknown which role Joe is playing. It is most likely a smaller role, since his name is not listed on A&E's main page for Coma.