Actress Inga Swenson has passed away at the age of 90. The screen star died on Saturday, July 22, 2023 of natural causes, according to TMZ. Inga’s son Mark announced the news on Friday via the outlet. Her husband Lowell Harris, whom she married in 1953, was by her side at a “board and care facility” when she died, her son said. Inga became a household name playing the character Gretchen Kraus on the hit ABC sitcom Benson, which aired from 1979 until 1986. …