"I feel great when I'm at work," the 'Euphoria' star said Eric Dane revealed in April that he was diagnosed with ALS Despite his “setbacks,” the Euphoria star said he has no plans of giving up his acting career He said he feels great at work and is prepared to "ride this 'til the wheels fall off" Eric Dane is not stepping away from acting amid his amyotrophic lateral sclerosis (ALS) diagnosis.

Dane -- who shot to fame amid six seasons on the hit ABC drama "Grey's Anatomy," where he played Dr. Mark Sloan, affectionately known as "McSteamy" -- said his symptoms began over one year ago, when he began to experience weakness in his right hand.

The "Euphoria" and "Grey's Anatomy" star, who revealed his diagnosis last Tuesday, sat down with "Good Morning America" to talk about his incurable condition.