Roseanne Barr lashed out at her sitcom son Wednesday for throwing her “under the bus” — after he “vehemently” condemned her racist tweetstorm.

Michael Fishman, who played DJ Conner in the original series and its 2018 revival, tweeted that Tuesday was “one of the hardest” days in his life and that he was “devastated” — not for the end of the show, but for everyone who “poured their hearts and souls” into it.