John Galsworthy

PASSINGS: Margaret Tyzack

PASSINGS: Margaret Tyzack

Margaret Tyzack

British actress on stage, screen and television

Margaret Tyzack, 79, a British actress perhaps best known to American audiences for her roles in the acclaimed BBC television series "The Forsyte Saga" and "I, Claudius," died Saturday in London, her agent said in a statement. The cause was not given.

A veteran of stage, screen and television, Tyzack won a Tony Award as Lotte Schoen opposite Maggie Smith in a 1990 Broadway production of Peter Shaffer's "Lettice and Lovage."

She was nominated for another Tony for playing the Countess of Rousillon in "All's Well That Ends Well" on Broadway in...