Sonny Koroschetz, dancer. Sonny Koroschetz is from Göteborg where he was trained privately in ballet and dance. His teachers included G. Voinea, R. Barroso, Aurica and Florin Muntoi. He joined the Göteborg Ballet in 1994 as a trainee and became a member one year later. Sonny took leave of absence from 2005 to 2007. Whilst with the Göteborg Ballet we have seen Sonny in Duende, Arcangelo, I Dolda Sekunder, and as the Mafia Boss i Petruchka, Uncle Drossmeier and the Mouse King in The Nutcracker, the Prince in Swan Lake² and Uno in The Moon Reindeer. Lately Sonny has appeared in Eroica, Sleeping Beauty, Walking Mad and La la land.