Eric Dane Reveals ALS Diagnosis, Plans to Return to Euphoria Set for Season 3 Eric Dane, beloved by fans for his unforgettable roles as Dr. Mark Sloan on Grey’s Anatomy and Cal Jacobs on HBO’s Euphoria, has revealed that he has been diagnosed with amyotrophic lateral sclerosis (ALS). Despite the emotional and physical challenges that… Continue reading Eric Dane Diagnosed with ALS, Plans Return to ‘Euphoria’ Set