[1] Afterward, both he and his twin brother Priit enrolled in the Performing Arts Department of the Estonian Academy of Music and Theatre to study acting, graduating in 2012.
Among his more memorable roles in theater were in works by such varied authors and playwrights as: Annie Baker, Maxim Gorky, William Shakespeare, Otfried Preußler, John Steinbeck, Ferenc Molnár, Tom Stoppard, A. H. Tammsaare, Molière, Johanna Emanuelsson, Diana Leesalu, and Paavo Piik.
In 2017, he had a leading role as Ralf Tamm in the Jaak Kilmi-directed adventure-comedy Sangarid, about three Estonian youths who escape from behind the Iron Curtain to Sweden via Finland in the 1980s to experience life in the free world.
[7] Pius has also appeared in Estonian television in a number of roles, including ETV2's Rula ja Ratas (2013) and Eesti Televisioon's (ETV) Aastavahetus Kinoteatriga (2015).
[9][10] Both Märt and Priit Pius have been diagnosed with Diabetes mellitus type 1 and speak openly about living with the condition in order to raise awareness of the illness.