A.R. Gurney's Ancestral Voices will give its last performance on Dec. 20 -- at least for the time being. The play, said a production spokesperson, will return to Lincoln Center Theatre's Mitzi Newhouse on Feb. 6, 2000. The current cast features Penny Fuller, George Grizzard, Brian D'arcy James, Faith Prince and John Shea.

Voices opened on Sept. 19. The original cast included Edward Herrmann, Blythe Danner, Philip Bosco, David Aaron Baker and Elizabeth Wilson. On Oct. 25, they were replaced by Mason Adams, Frank Converse, Mariette Hartley, Robert Sean Leonard and Anne Pitoniak.

Voices plays at the Mitzi Newhouse Theatre on Sunday and Monday evenings -- the LCT hit musical Contact's dark nights. In Voices, five actors sit on stage and read the script (making it easy for changing casts) about a family whose lives are turned inside out when young Eddie's grandmother unexpectedly divorces his grandfather to marry the grandfather's best friend.

When the production reopens on Feb. 6, it will feature a new cast, as yet unnamed.

Tickets for any of Lincoln Center Theatre's shows are available through Tele Charge at (212) 239-6200. --By Robert Simonson