LOS ANGELES, July 29— A child actress who played a girl slain by her father, a Green Beret, in the television movie ''Fatal Vision,'' was shot to death with her mother in a murder and suicide in which the killer was the girl's real father, officials said.
The three bodies were found Wednesday in the family's burned home. The 11-year-old girl, Judith Barsi, also starred in the movie ''Jaws IV: The Revenge'' as well as numerous television shows and about 50 commercials.
Coroner's officials identified the dead man as Jozsef Barsi, 55, but withheld the names of the woman and child pending notification of relatives. But neighbors said the girl was Judith Barsi, who was an only child.
Mr. Barsi apparently shot and killed his 48-year-old wife, Maria, and his daughter, soaked the bodies with gasoline and set them afire before going to the garage and shooting himself in the head with a .32-caliber pistol, investigators said.