According to The Hollywood Reporter, Boardwalk Empire star Michael Stuhlbarg is in negotiations with Marvel Studios about an unspecified role in next year’s Phase Three franchise launcher Doctor Strange.

Production on the movie is slated to get underway later this month, with Scott Derrickson (Sinister) directing a cast that so far includes Benedict Cumberbatch (Sherlock) as Stephen Strange, Tilda Swinton (Snowpiercer) as The Ancient One, Chiwetel Ejiofor (12 Years a Slave) as Baron Mordo and Rachel McAdams (True Detective) and Mads Mikkelsen (Hannibal) in as-yet-unconfirmed roles.

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Doctor Strange is set for release on October 28th, 2016 in the UK and November 4rh, 2016 in the US.