Stewart was born in London, England and having trained as an Actor Teacher worked in Repertory Theatre. However, in 1980 his practice as a Voice Coach began, teaching under the auspices of Cicely Berry at the ‘Guildhall School of Music & Drama’, then becoming the Head of Voice at the prestigious ‘Webber Douglas Academy of Dramatic Art’ from 1981-1997. During this period he also worked pervasively throughout the theatre industry at the ‘Actors Centre’, in the West End, and coaching many companies such as the ‘Actors Touring Company’.

From 1997-2010 Stewart became the Master of Voice at ‘Shakespeare’s Globe Theatre’ for Mark Rylance, the first Artistic Director of the newly reconstructed Theatre. During this period Stewart also regularly coached premier theatre companies such as Classic Stage Ireland, Chicago Shakespeare Theater, the Long- Wharf Theater Connecticut, The Royal Court Theatre, and Sonia Friedman Productions in the West End.

Clients have included luminaries of the entertainment industry such as Frances Barber, Minnie Driver, Kathryn Hunter, Vanessa Redgrave, Janet MacTeer, Michelle Williams, Jonathan Cake, Simon Callow, Hugh Bonneville, Matthew Goode, Eddie Redmayne, Mark Rylance and Sebastian Stan.

In addition, Stewart has been coach to many eminent personalities such as Diana Princess of Wales, Dame Anita Roddick, Margaret Thatcher, and the LONDON 2012 OLYMPIC BID. Currently he works through the international corporate market, dealing with many aspects of the presentation process including authentic communication, presence & vocal gravitas, and persuasive presentation. In addition, having experienced leading empowerment models such as NLP, Stewart brings creative self-development issues to the arena of Public Speaking and Personal Presentation.


Clients have included: Allen & Overy, L`Oreal, BT, BBC, ITN World News, McKinsey & Co, Merrill Lynch, WPP Programs, Momentum PR Dubai, Vidal Sassoon, Redken and McKenzie Boston.

Stewart’s seminal text ‘The Alchemy of Voice’ was published in 2005, and republished by Findhorn Press in 2010, and Stewart regularly appears in the media addressing the issues of Voice and Persona as powerful expressions of human integrity.  During 2010-2016 Stewart published three other books, two Oracle Decks, and several award-winning recordings such as the “Angels of Atlantis Soul Calls”. This work centered on Angelic Sound Healing, has generated an international reputation, and Stewart travels the world teaching the process of finding your signature note – the song of your soul – and so living within a harmonic state of balance.