THE BULLETIN BOARD is full this week: Mary Kay Place, who played Loretta Haggers in "Mary Hartman, Mary Hartman," among other roles, was all set to be in the cast of "I Never Sang for My Father" at the Kennedy Center, but recently dropped out to take a movie role. Place has been replaced by Caroline Aaron . . . Marcia Gay Harden was a familiar name to Washington theatergoers -- the actress made a critical and popular splash in plays like "Burrhead," "Equus," "And They Dance Real Slow in Jackson" and "The Miss Firecracker Contest." Then she left in 1985 to try her luck in New York and we haven't seen her since. Harden makes her prime-time television debut Friday at 8 p.m. on Channel 9, on the CBS Summer Playhouse production of "In the Lion's Den," about backstage life at a popular children's TV show. A press release says Harden plays "a luscious, naive production intern." After the program, viewers are asked to phone in their reactions . . . This Friday seems to be theater night on TV: PBS is airing a reprise of Tom Stoppard's "On the Razzle," performed by the National Theater of Great Britain, 9 p.m. on Channel 22 and others . . .

Washington playwright T.J. Edwards, whose "National Defense" just ended a successful run in Woolly Mammoth's second summer rep season, was mailing out the script of his Helen Hayes Award-winning "New York Mets" on his own. "I got some great rejections, really intense and detailed," he says. The gist of those letters looks likely to change soon -- a literary agent at International Creative Management recently caught onto Edwards' work and offered to represent him . . . Leslie Cass, a popular member of the Arena Stage acting company for many years, died last month at age 55 after a prolonged illness. Cass, who joined the company during the 1970-71 season, appeared in the inaugural Kreeger Theater production, "The Ruling Class" and went on to perform such roles as Nurse Ratched in "One Flew Over the Cuckoo's Nest," Bunny Flingus in "House of Blue Leaves" and Claire in "A Delicate Balance"; she also taught acting classes and lectured on theater. A memorial service will be held Wednesday at 8 p.m. in Arena's Old Vat Room.

Stage Rituals of the Rich and Famous: Robert Goulet, who's appearing in "South Pacific" at Wolf Trap through Sunday, arrives backstage an hour before the show so he can warm up by practicing imaginary golf swings . . . Dueling "Blood Knots": Both Washington Stage Guild and American Showcase Theater have chosen Athol Fugard's drama to open their seasons. Stage Guild opens September 15 and runs through October 11, and Showcase starts up October 16. The coincidence should provide theatergoers with the rare opportunity to compare two interpretations . . . The League of Washington Theaters has added five theaters to its ranks: American Showcase Theater, Discovery Theater, Sanctuary, Washington Jewish Theater at the Jewish Community Center and New Arts Theater. The League has also voted in this season's officers: Abel Lopez of GALA Hispanic Theater returns as president; Library Theater's Cherry Adler is vice-president; Melanie Cook of the Kennedy Center's Programs for Children and Youth is secretary; and Round House Theater's Geri Olsen is treasurer . . .

GALA will begin its season October 1 with a return engagement of its well-received production of "Matatangos." That's followed by "Celebracio'n -- Latin American Dance Theater" (November); "Galita Novidades" (December); "Dona Rosita, the Spinster" (February); and "Slow Motion" (April) . . . The four-play season chosen by Programs for Children and Youth includes a new play by David Mamet, called "The Revenge of the Space Pandas," which begins November 6 at the Kennedy Center Theater Lab. Call 254-7190 for the PCY schedule . . . Contrary to what the Source Theater tells us, their season-opener, "How I Got That Story," is not a Washington premiere: The Folger Theater Group produced it at the Kennedy Center in 1981. Anyway, it opens in the Main Stage next Friday . . . "Four Men From Annapolis" has been extended yet again at Touchstone Theater, through September 27. Actor Kent Liggett, who was prevented from joining the cast by a car accident, will replace Steven John Evans, who is rehearsing for "Out!" the baseball play that's the season-opener at New Playwrights' Theater . . .