Krob was born in Cheb, Czechoslovakia. His mother was of Russian origin, while his father was a descendant of Volhynian Czechs.
From 1963 onward, Krob worked at the Theatre on the Balustrade as a stage technician, and later a stagehand and assistant. There he met director Jan Grossman, as well as Václav Havel, then working as a playwright, and his wife Olga Havlová. In 1975, he founded the Na tahu Theatre.[2] He started the Žebrácká opera with Havel, which criticized the StB.[3]
In the 1970s, he was one of the first signatories of Charter 77, and was subsequently shunned by the theatre community. He then worked as a window seal fitter for several years, however managed to restore his directing career by the end of Communist rule.
He is the father of actress and singer Sylvie Krobová.
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