Eric Dane talks about his recent diagnosis with neurodegenerative disease ALS. He expresses anger and sadness, but also resilience in the face of this adversity.

Actor Eric Dane, perhaps best known for recurring roles as Jason Dean in “Charmed” and Mark Sloan in “Grey’s Anatomy,” has gotten up close and personal about his recent ALS diagnosis on “Good Morning America,” during a conversation with Diane Sawyer.