As Wally Stevens in this episode of Criminal Intent. Not to take away from Kathryn Erbe or Vincent D'Onofrio, but they're just slow pitching to Mark in this episode. He really deserved an Emmy (at least a nomination!) for his work as an insurance executive who has Asberger's and who is helping the detectives with their case. His acting at the end is jaw-dropping, sad and beautiful.
Review of Law & Order: Criminal Intent
