He started acting when he was 13 in the young artists' theatre created by Maria Biliżanka. He was an artist of Piwnica pod Baranami. After graduating from Ludwik Solski Academy for the Dramatic Arts in 1960 he began work in Ludowy Theatre (1960–1967, later 1974–1979, 1981–1986). Kwinta was also an actor of Silesian Theatre (1967–69), Helena Modrzejewska Theatre (1969–1971), Bagatela Theatre (1971–1974, as an artistic director 1986–1990), and Juliusz Słowacki Theatre (1990–2004).
In 1976, he was awarded with a Silver Cross of Merit.
He's best known as the main character from Polish TV cartoon Pampalini, łowca zwierząt (translated: Pampalini, a animal hunter).
He voiced Gaetan „Mole” Moliére in two Atlantis movies and Theodore Roosevelt in non-Disney film series Night at the Museum.