He was a prominent dissident under the communist regime of former Czechoslovakia. The first play that he wrote, Hodinový hoteliér, premiered at the Činoherní theater on 11 May 1969. In 1971 the communist regime banned him from film and television
He continued acting at The Drama Club and other theatres.
Landovský was one of the initiators of the human rights" petition Charter 77. He was subsequently banned from working at the theater.
Constantly harassed by the secret police (Státní bezpečnost), during the winter of 1978-1979, Landovský was accosted at night by an agent and severely beaten and had his leg broken. Feeling compelled to leave for his safety, when was offered a position in the ensemble of the Burgtheater in Vienna, Austria, he accepted.
After the Velvet Revolution in 1989, he was able to return to Prague in January 1990.
The play was directed by Jiří Menzel. He died on October 10, 2014 from a heart attack in Kytín, aged 78.