O'Hurley reprises his performance as silver-tongued lawyer Billy Flynn.
The Tony-winning revival is directed by Diane Paulus.
The actress will reprise her Tony-winning role on Broadway before heading out on tour.
Martin takes on the role of Berthe, for which she won a 2013 Tony.
The veteran press agent dishes about her nearly-half-century career in her new book Backstage Pass to Broadway.