HBO has assembled a cast for one of their upcoming new shows, The Anatomy of Hope. The program explores cancer battles from the perspectives of patients.

Chris Messina (HBO’s “Six Feet Under”) will play an oncologist who switches between being overly friendly and somewhat aloof, and Simon Callow (”The Phantom of the Opera”) will play one of the top oncologists in the U.S. Valerie Pettiford (UPN’s “Half & Half”) is set to play a terminally ill cancer patient, and John Ortiz will play a recent cancer survivor. Matt Craven (Distrubia) plays a guy who might have prostate cancer, and Daryl Edwards (Rent) plays a patient with advanced cancer.

J.J. Abrams’ medical pilot drama will also star Diego Klattenhoff who plays a recently engaged man with bone cancer, and Kerry Condon (HBO’s Rome) will star as his fiancee. Other doctors in the show include Sarah Knowlton who plays a nurse in the chemo ward, and Deepti Daryanani as a beautiful young doctor.

No word on when this will debut, but it looks like they’re almost ready for filming having finally put together a cast.