Bob Einstein, the actor best known for his Super Dave Osborne character, has died at the age of 76, TheWrap has learned.

Einstein’s brother, actor and comedian Albert Brooks, also confirmed the news of Einstein’s passing on Twitter on Wednesday. “R.I.P. My dear brother Bob Einstein. A great brother, father and husband. A brilliantly funny man. You will be missed forever,” Brooks wrote.

An L.A.-born actor, writer and comedian, Einstein made first made his name as a writer for “The Smothers Brothers Comedy Hour” alongside the likes of Steve Martin and Murray Roman before transitioning to performing as the bungling Super Dave Osborne character in the 1970s.

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Einstein first debuted the character, a sunny, naive and frequently-injured parody of daredevil stuntmen like Evel Knievel, on John Byner’s variety show in 1972 and later recurred on...