Harrison trained at Diverse Choreography Dubai and Laine Theatre Arts. 

Harrison’s theatre credits include Sheldrake and understudy Joe Gillis and Max Von Mayerling in Sunset Boulevard (Savoy Theatre, directed by Jamie Lloyd), understudy Scarecrow and Lion in The Wizard of Oz (The London Palladium), Rum Tum Tugger in Cats (international tour), understudied and played Amos Hart in Chicago the Musical (international tour), and understudy Eddie and Pepper in Mamma Mia! (Novello Theatre, West End debut). Onscreen, Harrison’s feature film credits include Train Station Chorus in forthcoming Wicked (Marc Platt Productions/Universal Pictures, directed by Jon M. Chu. Most recently Harrison could be seen as Gregory and u/s Paul & Gremio in Kiss Me, Kate (Barbican Theatre, directed by Bartlett Sher).