Ben Miles is an English actor, well known for his work on stage and screen. Having starred as Thomas Cromwell in the Royal Shakespeare Company's productions of Hilary Mantel's Wolf Hall and Bring Up the Bodies (2013), he collaborated with Mantel on the adaptation of the final novel in her trilogy, The Mirror and the Light, staged by the RSC in 2021, with Miles returning to the role of Cromwell.

Charley Miles is a British playwright. Her plays include: There Are No Beginnings (Leeds Playhouse, 2019); Daughterhood (Paines Plough tour, 2019); and Blackthorn (West Yorkshire Playhouse, 2016; finalist for the Susan Smith Blackburn Prize).

Mervyn Millar is a theatre and puppetry director, and director of Significant Object.

He was involved in the creative team of the National Theatre’s War Horse from its first workshop, also appearing in the show at the National Theatre and directing casts in London, New York, Toronto and Berlin. Other puppet design and direction includes Circus 1903 (international tour) and work for Sir Paul McCartney, Residenztheater Munich, the National Theatre of Scotland and National Theatre of Great Britain, Handspring UK, Opéra National du Rhin, Birmingham Rep, Schauspielhaus Zürich, the Royal Shakespeare Company, Royal Opera House, the Royal Court, Lyric Hammersmith, Bristol Old Vic, West Yorkshire Playhouse and the Young Vic. He is Chair of the Puppet Centre Trust.

He was Director at the Finborough Theatre between 1998 and 2000, and has directed productions at theatres including the National Theatre, BAC, Theatre Royal Plymouth and Bloomsbury Festival.

His teaching includes sessions and workshops with organisations including the O’Neill National Puppetry Conference, the Arvon Foundation, the Curious School of Puppetry, RADA, Royal Welsh College of Music & Drama, Royal Central School of Speech and Drama, the University of East Anglia, the National Theatre, the Royal Court, London International Mime Festival, Puppet Animation Scotland and The Actor’s Guild.

His books include Puppetry: How to Do It, The Horse’s Mouth and Journey of the Tall Horse. He was awarded an Arts Foundation Fellowship for his work in puppetry.

Suzie Miller is an Australian-British playwright, librettist and screenwriter. Her plays include Prima Facie, which was premiered in Australia in 2019, and had its UK premiere in the West End in 2022.

Helen Mirren is an acclaimed British actress, who won an Academy Award in 2007 for her performance as Elizabeth II in The Queen. Other work includes The Long Good Friday, The Cook, the Thief, his Wife & Her Lover and her BAFTA and Emmy Award-winning role in Prime Suspect.

Gary Mitchell is a British playwright based in Northern Ireland. His plays, many of them political thrillers about contemporary life in Belfast, have been widely performed, and he has been called 'Northern Ireland's greatest playwright' (Guardian).

His stage plays include In a Little World of Our Own (Abbey Theatre, Dublin, 1997), As the Beast Sleeps (Abbey Theatre, 1998), Tearing the Loom (Lyric Belfast, 1998), Trust (Royal Court Upstairs, London, 1999), The Force of Change (Royal Court, 2000, winner of the George Devine Award and the Evening Standard Award for Most Promising Playwright), Loyal Women (Royal Court, 2003) and Burnt Out (Lyric, Belfast, 2023).