According to The Hollywood Reporter, Cox will appear in at least seven episodes of the Emmy Award-nominated David Milch-created series when it returns in 2006.
Scotsman Cox, known for his film turns in "Adaptation" and "The 25th Hour," has appeared on Broadway in Art and Strange Interlude. The actor who recently appeared in a Los Angeles Theatre Works' run of The Ride Down Mt. Morgan also garnered two Olivier Awards on the London stage in Titus Andronicus and Rat in the Skull. His film credits includes "The Ring," "X2: X-Men United" and "The Bourne Supremacy."
The character Langrishe will be based on the real-life namesake theatre actor-manager-producer-owner. Originally a New Yorker, the man whose name was often prefaced with "Colonel" or "Jolly," brought his traveling troupe to Deadwood circa 1876-1878. He would eventually own his own theatre there.
"He was a brilliant producer who made a fortune and, of course, lost every cent in hare-brained investments," said creator Milch in an interview with Canada's Globe and Mail. "And he was in love with the male ingénue in the theatrical troupe; the only downside was the ingénue was, by this time, about 52, and he kept insisting on playing 18-year-olds. This guy insisted every season on doing two Shakespeare plays, and invariably somebody tried to murder him during the performance because, strangely enough, Shakespeare wasn't big in the mining camps."
Created and executive produced by David Milch ("NYPD Blue"), "Deadwood" was nominated for 11 Emmys for its debut and second season. Timothy Olyphant stars as the lawman Seth Bullock and Ian McShane as town boss Al Swearengen along with John Hawkes as Sol Star, Molly Parker as Alma Garret, Powers Boothe as Cy Tolliver, Robin Weigert as Calamity Jane, Brad Dourif as Doc Cochran, Paula Malcomson as Trixie, Dayton Callie as Charlie Utter, William Sanderson as E.B. Farnum and Jeffrey Jones as A.W. Merrick. Stage stars Keith Carradine (The Will Rogers Follies, Stuff Happens) appeared in the first season as Wild Bill Hickok and Sarah Paulson (The Glass Menagerie, Colder Than Here) appeared in the second as tutor Miss Isringhausen. For more information on "Deadwood," visit the official HBO site at hbo.com/deadwood.