[2] Sas finished the private drama school of Kálmán Rózsahegyi in 1957.

[citation needed] In June 2009, József Sas was legally sentenced to one-year prison with two-year period of probation, and a fine of HUF 300.000 on charges of seven counts of tax fraud, so, although nominated for the Kossuth Prize in that year, the submission was withdrawn.

[7] Sas announced his retirement from theatrical performance in November 2018, due to declining health.

[8] He was on vacation with his wife in Thailand in early 2019, when he had a severe bilateral stroke.

[9][10][11] He was treated for months in the rehabilitation institute in Budakeszi, then in the Federation of Hungarian Jewish Communities (Mazsihisz) Charity Hospital.