In 2015, 20 year old sisters Emily and LJ Keston founded Stagebox in Leeds with a mission to bring access to industry opportunities to young people- regardless of background, location, or experience. The programme began as an outreach initiative in Leeds but soon gathered momentum with centres following in London, Manchester, Birmingham, Edinburgh in tandem with a worldwide online platform.

In 2019, Emily and LJ were approached by West End producers to cast and general manage 300+ children a season having been noticed for their regional scouting & expertise in the sector. They fast became go-to experts as children’s casting directors and general managers at Keston & Keston building an impressive portfolio of credits now including Disney’s The Greatest Showman stage adaptation, The Lion King, Charlie and the Chocolate Factory, Oliver!, 13 Going on 30, Nativity!, NBC Live’s The Grinch, and various high-profile projects for Marvel and Netflix.

In 2025, they continue their work as children’s casting directors and general managers independently and remain proud founders committed to excellence and accessibility in the arts.

Jasmine has overseen Stagebox’s award-winning training and nationwide growth for nearly a decade, building on creative development, outreach, and partnerships. Jasmine is passionate about nurturing young talent and has overseen major events including The Company Project Live whilst spearheading diversity and inclusion through The Diversity Project initiative.

A renowned industry choreographer, Jo has led the last two Company Projects and brings credits including Black Mirror (Netflix), The Performance Movie, Strike (HBO/BBC), and My Fair Lady (Curve). She continues to play a vital role across studio, set, and stage, championing the professional standard and impact of Stagebox’s work.

Scott supports the delivery of Stagebox’s training and live performance opportunities, bringing experience in theatre production, arts administration, and creative development. He has worked in administration across training providers and joins Stagebox with a passion for supporting the next generation.

Heather is the Assistant Talent Agent at Stagebox Management, supporting both the Established and Emerging talent lists. Heather now brings her industry insight and first-hand experience to agenting, helping clients secure their dream roles and grow meaningful careers.

Joel is Head of Emerging Talent at Stagebox, where he champions the next generation of rising talent. Known for his instinctive eye and personalised approach, he specialises in nurturing early career trajectories and guiding talent through the crucial first stages of their professional journey.

As Director of Film at Stagebox, Joe brings professional film set experiences to members, directing video shoots and the Company Project Live. His recent credits include Sunset Boulevard (Broadway), Romeo & Juliet (West End), and acclaimed work on productions like Cabaret (West End & Broadway), & Juliet (Worldwide).

John brings 19 years of experience in theatre, entertainment, and operations, with credits including The Book of Mormon, Moulin Rouge, and The Lion King, as well as production work on MAMMA MIA! worldwide; his leadership at Stagebox is driven by deep industry insight and a passion for live performance.

Chloë brings over a decade of industry experience to Stagebox, where she leads the Established List with strategic vision and champions top-level talent across all genres. Chloë has agented some of the biggest deals of the decade including high-profile deals, co-reps and adult contracts across the UK and the US.