Grey's Anatomy Exclusive: Dexter's James Remar Cast as Alex's Estranged Father

Dexter’s dad is checking into Grey’s Anatomy.

Acting vet James Remar has landed a multi-episode arc on ABC’s long-running medical drama, TVLine has learned exclusively.

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ABC declined to comment, but sources confirm that Remar will play Alex’s (Justin Chambers) estranged father.

Remar is coming off an eight-year run playing the late father of Michael C. Hall’s titular serial killer on Showtime’s Dexter (the series finale airs Sept. 22).

Grey’s Anatomy‘s 10th season bows with a two-hour episode on Thursday, Sept. 26.