Steve Costi, originally from Adelaide, began his training at the Australian Company of Performing Arts before moving to Sydney to study at the renowned Brent Street Studios, where he earned a Diploma of Dance in 2023. In 2024, he made his professional musical theatre debut in Handa Opera’s West Side Story (Opera Australia) on Sydney Harbour. This was followed by an acclaimed performance as Sonny in In The Heights (JRP) at the Sydney Opera House (2024) & Australian Tour (2025).

Steve’s credits also include performing with Katy Perry at the AFL Grand Final, Australian Idol, The Lord Mayor’s Christmas Carols, The Sydney Theatre Awards, The Premier’s Gala, as well as numerous special events such as the 2024 Lululemon campaign launch, and the Vogue X Chery car launch. 

Steve is thrilled to bring the spirited character of Sonny to life once again in this iconic story.