Sherlock Holmes adaptation Elementary has snapped up The Newsroom‘s David Harbour for a guest role in the upcoming first season.

Starring Jonny Lee Miller and Lucy Liu as Sherlock Holmes and Dr. Joan Watson, respectively, Elementary sees a modern day spin on the great detective relocate to New York City for a stint in rehab, before eventually teaming up with sober companion and disgraced surgeon Joan to solve the Big Apple’s more mysterious crimes.

Harbour played recurring guest character Elliot Hirsch in four episodes of Aaron Sorkin’s The Newsroom, and according to TV Line he will now join Liu, Miller and Aidan Quinn in the new CBS crime drama.

He will play Dr. Mason Baldwin, a brilliant surgeon who assists Holmes when a hospital becomes the crime scene of a grisly murder. It’s unknown which episode of the series Harbour will star in.

“ELEMENTARY stars Jonny Lee Miller as detective Sherlock Holmes and Lucy Liu as Dr. Joan Watson in a modern-day drama about a crime-solving duo that cracks the NYPD’s most impossible cases. Following his fall from grace in London and a stint in rehab, eccentric Sherlock escapes to Manhattan where his wealthy father forces him to live with his worst nightmare – a sober companion, Dr. Watson. A successful surgeon until she lost a patient and her license three years ago, Watson views her current job as another opportunity to help people, as well as paying a penance. However, the restless Sherlock is nothing like her previous clients. He informs her that none of her expertise as an addiction specialist applies to him and he’s devised his own post-rehab regimen – resuming his work as a police consultant in New York City. Watson has no choice but to accompany her irascible new charge on his jobs. But Sherlock finds her medical background helpful, and Watson realizes she has a knack for playing investigator. Sherlock’s police contact, Capt. Tobias “Toby” Gregson (Aidan Quinn), knows from previous experience working with Scotland Yard that Sherlock is brilliant at closing cases, and welcomes him as part of the team. With the mischievous Sherlock Holmes now running free in New York solving crimes, it’s simple deduction that he’s going to need someone to keep him grounded, and it’s elementary that it’s a job for Watson. Rob Doherty, Sarah Timberman, Carl Beverly and Michael Cuesta, who directed the pilot, are executive producers for CBS Television Studios.”

 

Elementary begins on CBS Sept. 27 at 10/9c.

Earlier this week, Sherlock star Benedict Cumberbatch spoke about his concerns for the series and its similarities to Steven Moffat’s widely lauded BBC series. The actor also discussed future projects like The Hobbit, Star Trek 2 and the super-sleuth’s third run of investigations, which start shooting in January.

Are you looking forward to seeing The Newsroom actor in Elementary?