Katarina Josipi acted on stage for the first time at the Amateur Theater in Uroševac. In spring 1948 she joined the Provincial People's Theater of Pristina, as the first actress. Kati acted in Pristina for 21 years; at the Professional Theater of Pristina she played with
Nexhmije Pagarusha,
Bekim Fehmiu,
Muharrem Qena, Hyrie Hana, Istref Begolli, Xhevat Qena, Shani Pallaska, Malo Gami, Ragip Loxha, Kriste Berisha, Matej Serreqi, Shaban Gashi, Abdurrahman Shala,
Melihate Ajeti, Leze Spaci Qena, Meribane Shala, Adelajde Sopi, Belxhyzare Domi, Qazim Dushku, Safete Rogova, Igballe Gjurkaj Qena, Melihate Qena, and so many others. She was awarded numerous prizes and recognised by professional institutions of
Kosovo and elsewhere. The Original Play Competition of the National Theater of Pristina was named after her. The Prize for the most successful female role for comedy also carries her name (in
Preševo), and the "Kati's Ring" Prize, granted annually to a professional actress for the best role in
Prishtina, and also . ==Theatre==