Jeffrey Dean Morgan Understands Why Patrick Dempsey Left 'Grey's Anatomy'

05/22/2015 12:33 pm ET | Updated May 22, 2015

Acting on "Grey's Anatomy" was pretty great for Jeffrey Dean Morgan. Not only is he forever cemented as one of the show's most memorable characters -- Denny Duquette, the dying patient who Dr. Izzie Stevens risks her job to save -- but he was also cast in the big-budget comic book film "Watchmen" after director Zack Snyder saw him on "Grey's," Morgan told HuffPost Live on Thursday. But despite all the positives, Morgan said he understands why Patrick Dempsey was ready to leave the show this season.

"I guess it's run its course for some of those people [who] have been there for 10 years, and at a certain point you don't want to do that character anymore and it's time for new challenges," Morgan said. "And I get it. I get [Dempsey] being ready to say goodbye and I get the show being ready to move forward and introduce some new storylines. Look, 10 years is a long time. I don't think I could last in anything for 10 years doing a character."

The actor added that he doesn't mind being constantly asked about Denny so many years after playing him because he owes his current success to the hospital drama.

"It will follow me forever, but I'm good with it because if it weren't for this show, I wouldn't have the career I have now," he said.

Even though "Grey's Anatomy" may be Morgan's most memorable project, he's been busy ever since. He'll appear next in the new History Channel miniseries "Texas Rising," as well as the Lifetime movie "The Secret Life Of Marilyn Monroe."

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