Heino Mandri was finally rehabilitated in 1990, a few months before his death.
He changed his name from Heino Numman to Heino Mandri in 1937.
After his release from the Gulag, he could not take jobs in Tallinn, so he joined Ugala theatre in Viljandi. When the restrictions that forbade him from working in Tallinn were lifted in 1958, he started working in Drama Theatre (Draamateater).
The NKVD arrested him in 1948 for being a member of the Armed Combat Union (Relvastatud Võitluse Liit, RVL) that was an anti-Soviet resistance movement in Western Estonia. He was sentenced 7 years in Gulag.