Tony-winner Alan Cumming will play his final performance as the Emcee of Broadway's Cabaret on June 6. No official replacement has been announced.

The Daily News reports that Cumming has been cast in the next live-action "Flintstones" film ("Viva Rock Vegas") as The Great Gazoo, the martian who gives Fred advice.

Cumming took a two month leave of absence from the Kander and Ebb tuner back in September and also missed several performances in January because of a featured role in Julie Taymor's film adaptation of Titus Andronicus. Side Man's Robert Sella has filled in for Cumming, as has Vance Avery.

Cumming's film credits include: "Goldeneye," "Romy and Michelle's High School Reunion," "Emma," and "Circle of Friends." The Scottish actor originated the emcee role for director Sam Mendes' "environmental" setting when the production premiered at England's Donmar Warehouse.

Boyd Gaines, the folksy actor who played Bobby in the Roundabout Theatre's Company and Georg [sic] in Roundabout's She Loves Me, stepped into the role of Clifford Bradshaw on Mar. 2 -- the same day Mary McCormack (Howard Stern's "Private Parts") joined the cast as the new Sally Bowles. Still with the show are Blair Brown (Schneider) and original cast members Denis O'Hare (Ernst), Michele Pawk (Kost) and Tony-winner Ron Rifkin (Schultz). Rifkin (The Substance of Fire) will be leaving the show at the end of April.

For tickets and information on Cabaret at Studio 54 call (212) 239- 6200.