james remar greys anatomy 'Grey's Anatomy' Season 10: 'Dexter' alum James Remar checks in for mysterious role

“Dexter’s” dad is heading to Grey Sloan Memorial Hospital … though what he’ll be doing there remains a secret.

James Remar — who plays Harry Morgan in flashbacks on Showtime’s serial killer drama “Dexter” — just booked a multi-episode arc on “Grey’s Anatomy,” TVLine reports. 

Though details on his character are being kept a secret, an insider confirms that he will first appear on ABC’s long-running medical drama early into its upcoming 10th season.

While Remar’s character remains a mystery, we do know two things about Season 10 for sure. 

First, this season will be the last for Sandra Oh, who plays the brash and brilliant Dr. Cristina Yang. And second, the former chief Richard Webber will survive his seemingly-fatal injuries from the Season 9 finale.

“Grey’s Anatomy” Season 10 premieres with a two-hour episode on Thursday, Sept. 26 on ABC.

Posted by:Sydney Bucksbaum