David Harbour David Harbour

The Newsroom's David Harbour has landed a guest role on an episode of CBS' upcoming Sherlock Holmes series Elementary, TVLine reports.

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Harbour will play Dr. Mason Baldwin, a "brilliant surgeon" who acts as an accomplice to Sherlock (Jonny Lee Miller) as he helps the detective investigate a murder in his hospital.

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The series also stars Lucy Liu as Sherlock's Watson to as well as Aidan Quinn and Jon Michael Hill.

Elementary premieres Thursday, Sept. 27 at 10/9c.