A weekly column of high-profile cast changes in Broadway shows.

Joining the Parker siblings -- Timothy Britten (Rent) and Sarah Jessica (Once Upon a Mattress) -- and the Sabella brothers - Ernie (A Funny Thing Happened on the Way to the Forum) and David (Chicago) - on Broadway are the brother and sister team of Michael and Marisa Cerveris. Michael is in the much-talked-about Titanic, currently in previews, and Marisa has just joined the ballet chorus of the long-running The Phantom of the Opera.

As a sidenote, the Giamatti brothers were on Broadway simultaneously briefly in late March -- Paul in Three Sisters, and Marcus in Pulitzer prize-winning The Young Man from Atlanta, continuing at the Longacre. Earlier in the season, the pair appeared together in Michael Cristofer's The Blues are Running at Manhattan Theatre Club.

Jay Hunter Morris, who has played Tony, the opera student, in Terrence McNally's Master Class since the play's inception, has departed the production to co-star in an opera. The role of Tony is now being played by Matthew Walley, Jay's former understudy.

Finally, in an addendum to an item several weeks ago, the producers of The King and I will not hold an official press opening for Faith Prince after all. Critics have been invited to attend the hit Rodgers and Hammerstein revival between April 11 and 16 so reviews should begin appearing shortly. -- By Andrew Ku