IRINA ARKADINA, an actress
CONSTANTINE TREPLIEFF, her son
PETER SORIN, her brother
NINA ZARIETCHNAYA, a young girl, the daughter of a rich landowner
ILIA SHAMRAEFF, the manager of SORIN'S estate
PAULINA, his wife
MASHA, their daughter
BORIS TRIGORIN, an author
EUGENE DORN, a doctor
SIMON MEDVIEDENKO, a schoolmaster
JACOB, a workman
A COOK
A MAIDSERVANT
The scene is laid on SORIN'S estate. Two years elapse between the third and fourth acts.