Early career in Poland
He studied literature at the Jagiellonian University. He made his first steps on the stage as early as in 1927, at the Juliusz Słowacki Theatre in Kraków. He debuted in the role of Zakrystian Leuthier in the play Mon curé chez les riches (Proboszcz wśród bogaczy), which premiered on 29th August, 1927. When Aleksander Zelwerowicz saw Ziembiński playing the main character in Simone by Deval, he invited the young actor to his theatre in Vilnius. Ziembiński accepted Zelwerowicz's offer to direct Fernand Crommelynck's play The Sculptor of Masks (Maski) – the premiere took place on 1st October, 1929. Soon afterwards, Zelwerowicz recommended him to go to Warsaw and take the extramural exam in directing. On 16th December, 1929, he passed the exam with an excellent grade from the Association of Polish Stage Artists (ZASP), which made him the youngest professional director in Poland. Actress Hanna Małkowska reminisced:
This young man, who leaped directly from university to the Juliusz Słowacki Theatre stage, was never a beginner – he was a ready actor from the very start. His phenomenal diction stunned, as he was able to speak at the speed of a machine gun and still maintain perfect articulation. Moreover, he also immediately became a director. Zelwerowicz commissioned him to direct several plays, which Zbigniew did exquisitely, and after one season of practice passed his directing exam, right after which he was invited by Szyfman to work at the Polski Theatre and became the youngest director in Poland.
In the 1930/31 season Ziembiński worked at the Polski and Mały Theatres in Warsaw. In 1932, he started working as the actor and director at Warsaw's Municipal Theatres (1932/33-1933/34). He also worked as a visiting actor at the Nowy Theatre in Poznań, and later returned to the Polski and Mały Theatres, until the Second World War broke out. Some of his most acclaimed works include the Poet (in The Wedding by Stanisław Wyspiański), Chopin (Summer at Nohant by Jarosław Iwaszkiewicz) the Judge (Geneve by George Bernard Shaw), Zbigniew (Mazeppa by Juliusz Słowacki), Khlestakov (The Government Inspector by Nikolai Gogol), Stanisław Potocki (November Night by Wyspiański), and Freddy (Shaw's Pygmalion).
His artistic biography is dominated by plays tinted with humour: farces, comedies, and bourgeois tragedies. Some of the loudest works he made as a director include: Henry IV by Pirandello (1934), Old Wine (1935), Vintage Wine by Ashley Dukes and Seymour Hicks (1935), The Dominant Sex by Michael Egan (1936), Jadzia the Widow by Julian Tuwim (1937), The Importance of Being Earnest by Oscar Wilde (1939), and his last play staged in Poland, just before the beginning of Second World War – Geneve by Shaw. The latter was a political comedy that ridiculed the major players on the international political scene: Hitler, Mussolini, and General Franco. It was still being performed in the first days of September 1939, when bombs started dropping on Warsaw.
War troubles
In the first weeks of the War Ziembiński found himself Romania. He recalled those moments in an interview for the Brazilian theatre organization SNT:
I left Warsaw convinced that this was just a temporary commotion, bound to last up to two or three weeks. We were retreating towards Russia. Romania was our only possible direction. I spent four months there, preparing theatre performances for Polish refugees.
The Group of the Warsaw Theatres' Artists, later known as the Polish Theatre in France or by its colloquial name: Ziembiński's Team (Zespół Ziembińskiego), was inaugurated on 17th November, 1939, with a performance of Stefan Żeromski's play My Quail Has Fled. The performance featured Irena Eichlerówna. After the premiere and second performance in Bucharest, the production travelled to other cities in Romania. Later on, it was accepted by the French Theatre Board and staged on 10th February, 1940 at Théâtre Antoine in Boulevard de Strasbourg, Paris. It was equally well received in France, earning positive reviews both in the national and the emigré press. After the capitulation of France, Ziembiński managed to get hold of a Brazilian visa. On 4th January, 1941, when he departed from France, he wasn't intending to stay and work in Brazil. He had been invited to work as director in an amateur theatre group in New York, however U.S. visas were much more difficult to obtain. Thus, Ziembiński embarked on the long journey by ship to Rio, hoping that it would be easier to reach New York City from there. On 6th July, 1941, after a six-month long-trip, he found himself in Rio de Janeiro. He was thirty-three years old, broke, and spoke no Portuguese.