Isaac spent three years as a Stockroom Artist. Stockroom was a writers room for theatre.
Stockroom Artists produced new work for midscale stages around the country.
While part of the writers room, Isaac's theatre productions included Blaccine: First Dose, How A City Can Save The World and Alice in Wonderland.
His writing has been shortlisted and longlisted for competitions, and performed at scratch nights and festivals at theatres including Vaults, Talawa, Arcola, Southwark Playhouse, Soho Theatre, Stratford Arts, Bush Theatre, and Tamasha.