Stacy Keach, better known to television viewers as Mike Hammer, will star in the title role of "Richard III" when the Shakespeare Theatre at the Folger's 1990-91 season opens Sept. 11. It won't be the first time Keach has trod the boards in Washington. He was here four years ago when the flamboyant director Peter Sellars cast him in the starring role in "Idiot's Delight" at the Kennedy Center. He also played the Kennedy Center in the title role in the national touring company production of "Barnum."

The announcement that Keach would be performing at the Folger was made Saturday at the annual Will Awards dinner where distinguished actor Christopher Plummer was presented with the third William Shakespeare Award for his achievements in classical theater. At the dinner, the Folger presented its first Distinguished Service Award to Lady Marjory Wright, the wife of the former British ambassador, Sir Oliver Wright. Both were at the dinner. Lady Marjory, a former actress, was especially dedicated to Washington theater and frequently opened the grand Massachusetts Avenue embassy for fund-raising activities.

Out and About

There was a time when a man accused of having an affair with another woman could expect a negative effect on his career or his business. That hasn't been the case with egocentric developer Donald Trump. The story of his pending divorce from wife Ivana and the relationship with blond bombshell Marla Maples has made all the headlines, but it has been good for business at his new Taj Mahal Atlantic City casino and even on the Trump Shuttle. Ironically, the rate of women flying the shuttle has increased 15 percent, Trump's public relations spokesmen say proudly ...

It didn't hurt Burt Reynolds's career to appear nude on a bearskin rug in Cosmopolitan magazine 18 years ago. In fact, there are those who say it was a big boost for the actor. For this month's 25th anniversary issue, the magazine tried and failed to get ever-publicity-hungry Donald Trump to pose in the altogether, so instead it signed up semi-hunk David Hasselhoff as a foldout. Also in the picture are two deeply wrinkled Shar-pei puppies, one sound asleep and protecting the television star from overexposure. Among the others who have undressed for Cosmo are Arnold Schwarzenegger (1977), who went on to become "Conan the Barbarian" and to marry one of the Kennedy cousins, Maria Shriver; and John Davidson and Jim Brown (both 1974), who gained no noticeable advantage from the exposure. On the cover of this anniversary Cosmo is a fully dressed Madonna with no big show of the cleavage that is traditional with cover models ...

Playgirl Princess Stephanie of Monaco has a new fiance du jour. The 25-year-old daughter of Prince Rainier and the late Grace Kelly has announced plans for a wedding in June in Monaco to 26-year-old real estate developer Jean-Yves Le Fur. But then who knows what will happen by June? Stephanie has been down the engagement road before and lived to get engaged again ...

Elizabeth Perkins, best remembered as Tom Hanks's sophisticated girlfriend in the hit film "Big," told Us magazine she never joined the famous Hollywood brat pack because: "They all hung out together, got engaged to each other and lived together and had sex and partied and had dinner together and drank Coronas at the Hard Rock. I didn't" ...