Police spokesman Jan Strommegard says the remains of one person were found Sunday in the ashes of the house and are probably those of the 83-year-old actor or his wife, 67-year-old Kia Ostling. Both were reported missing by their relatives who say the couple apparently was home when the fire destroyed the house early Friday.
The cause of the blaze is unknown.
Oscarsson won the best actor award at the 1966 Cannes Film Festival for his role as starving writer Pontus in the movie "Hunger."
During his career he starred in more than 100 Swedish films and TV series.