Constantine as an actor and actor-musician participated in an array of projects over the years, from original musicals to revivals and from the Edinburgh Fringe to Wembley Arena. He has also taken on the role of creative, vocal and musical director for projects on stage.
Theatre credits include: Zaccheus in Love Beyond (Original London Cast, Wembley SSE Arena), Pietro / Oboe in San Domino (Grimeborn Festival, Arcola Theatre), Mr. Mushnik in Little Shop of Horrors (Off-West End, White Bear), Tonelli in Flahooley (The Lost Musicals, Sadlers Wells), Sisera in Deborah (Edinburgh Fringe), Puchepechas in Maya (Off-West End, Baron’s Court Theatre), The Devil in Hagridden! (written by Stephen Clarke, music by Paul Barker - RCSSD), The Baker U/S / Ensemble / Percussion in Into the Woods (RCSSD)
Vocal Director credits include : Socrates and His Clouds (Jermyn Street Theatre, London), Amanda the Musical (Silver Spotlight - Cyprus) and Σταχτοπούτα (Cinderella) a Musical Comedy (Alpha Square - Cyprus)