Associate Artists

For Sherman Theatre: The Messenger. Seiriol Davies sings and acts and writes and composes. He trained at LISPA and started out in cabaret. He has worked with Punchdrunk, Gideon Reeling and Brian Catling, is a founder member of Brighton art collective / record label Beatabet, and tragi-glam rock band Temper Temper, and was half of cult punk music hall turn Underbling & Vow. He now works primarily in theatre. In 2016, he wrote and starred in his first musical, the acclaimed How to Win Against History, which premiered at the Edinburgh Fringe in 2016 and was the #1 best-reviewed show of the festival. It returned to the Fringe in 2017 before touring widely and transferring to a sell-out run at the Young Vic in London. It won several awards, including The Stage Edinburgh Award and a Wales Theatre Award (Best Touring Production). Seiriol was also nominated for a UK Theatre Award for Best Performance in a Musical for his portrayal of Henry. As an actor, writer and composer, he has worked with companies including The Old Vic, the Gate Theatre, English National Opera, National Theatre Wales, the Lyceum in Edinburgh, and many others.


For Sherman Theatre: Romeo and Julie (& National Theatre), Tales of the Brothers Grimm, A Christmas Carol, Alice in Wonderland, Iphigenia in Splott , Arabian Nights.

Hayley graduated from the Royal Welsh College of Music and Drama in 2002, where she was the recipient of the Paul Kimpton Prize for Innovation.

Other credits include: Unbelievable (West End); The Boy with Two Hearts (Wales Millennium Centre / National Theatre); Blood Harmony (ThickSkin); Macbeth, Hamlet, Road (Leeds Playhouse); Gin Craze (Royal & Derngate Theatre / China Plate / English Touring Theatre); Oliver Twist (Leeds Playhouse / Ramps on the Moon / UK Tour); As You Like It (Queens Theatre, Hornchurch / National Theatre); A Christmas Carol (Hull Truck); Double Vision (Wales Millennium Centre); Romeo and Juliet (West Yorkshire Playhouse); Wonderman (Gagglebabble / National Theatre of Wales / Wales Millennium Centre); Made In Dagenham (Queens Theatre, Hornchurch / New Wolsey Theatre, Ipswich); The Tale of Mr Tumble (Manchester International Festival); Little Sure Shot (Theatre Royal, Bath / West Yorkshire Playhouse / Tour); Caucasian Chalk Circle, Britain’s Best Recruiting Officer (Unicorn Theatre); All My Sons, The Strange Case of Dr Jekyll and Mr Hyde, Wind in the Willows, Of Mice and Men (Watermill Theatre); A Taste of Honey (Hull Truck / Derby Theatre); Wanted! Robin Hood (Manchester Library Theatre); Arabian Nights, All The Way Home (Manchester Library Theatre); Cooking With Elvis (Derby Theatre); Fantastic Mr Fox (Singapore Repertory Theatre); The Ballroom of Joys and Sorrows (Kate Flatt Productions / Watford Palace Theatre); Heidi, The French Detective and The Blue Dog, Around the World in Eighty Days, The Nutcracker, Animal Farm (Theatre Royal, Bath); Mongrel Island, The Boy Who Fell Into A Book (Soho Theatre); Little Voice, Peter Pan (The Dukes, Lancaster); Muscle (Bristol Old Vic / Hull Truck); God In Ruins (Royal Shakespeare Company).

For Sherman Theatre: Llwyth (and Theatr Genedlaethol Cymru), Snowchild / Plentyn yr Eira (and Theatr Iolo), Peter Pan, Fe Ddaw’r Byd i Ben (and Royal Welsh College of Music and Drama), All That I Am (and Royal Welsh College of Music and Drama), Tylwyth (and Theatr Genedlaethol Cymru). Daf James is an award-winning playwright, screenwriter, composer and performer working across theatre, radio, television and film in English and Welsh. He trained in the Lecoq pedagogy at the London International School of Performing Arts and has a PhD in Theatre Studies from the University of Warwick. His first play Llwyth (Tribe) ‘announced James as a major new voice, and pioneered a bold new Welsh-language theatrical vernacular’ which ‘changed the landscape of Welsh language theatre forever' (The Guardian / Contemporary Welsh Plays). For his most recent play Tylwyth, he was described as ‘One of Wales’s most exciting playwrights’ (The Guardian), and ‘the best modern Welsh dramatist we have’ (Wales Online). His musical work has also been awarded a Total Theatre Award for Music and Theatre. 

Director / Accent Specialist. For Sherman Theatre as a director: Lose Yourself. Patricia also produced and directed Beckett's NOT I which featured in the Sherman's Autumn 2016 Season. She is a Senior Lecturer in Acting and an in-house director at the Royal Welsh College of Music & Drama where she has directed The Vibrator Play, Therese Raquin, The Merchant of Venice, The Moors, Stupid F***ing Bird and most recently, Sweat. Patricia has worked extensively in theatre and film as a professional text and accent specialist and has assisted on numerous Sherman productions in this capacity.

For Sherman Theatre: Crafangau / Claws. Nia is a Welsh and Cape Verdean writer from Cardiff who also speaks about diversity and education. She graduated in 2020 with a Master's in Creative Writing from Cardiff University. In her writing she is currently focusing on fantasy, horror, and LGBTQ+ identity. She has been previously published in The Ghastling.

For Sherman Theatre as an actor: Crafangau / Claws (Heart of Cardiff audio series and live performances 2021). For Sherman Theatre as a writer: Bratiaith (Heart of Cardiff audio series). Mali Ann Rees is a Cardiff-born actress and writer, trained at East 15 Acting School. Mali debuted her acting career as Ffion in Severn Screens BBC / S4C bilingual crime drama Hidden / Craith. She has since been in numerous television and theatre productions including: Merched Parchus and Fflam on S4C, Tourist Trap on BBC One Wales and is most recently seen in BBC / S4C drama Keeping Faith and BBC One Wales comedy pilot Mammoth. Mali’s theatre credits include World’s Apart in War with Theatr Clwyd, Y Cylch Sialc with Theatr Genedlathol Cymru and Crafangau / Claws with Sherman Theatre. Mali’s radio work includes Torchwood and Doctor Who with Big Finish Productions, Newsjack and Welcome Strangers with the BBC. Mali started her writing career with her audio play Bratiaith for Sherman Theatre’s Heart of Cardiff series. She has since written a short play, Thieves, which was recently performed at Theatr Clwyd, and is currently developing a new play.  

Suzanne Packer, a proud Cardiffian, has been gracing our television screens and main stages, playing a wide range of characters in a career that has taken her from the West End of London to the Wales Millennium Centre, and from early appearances on Brookside on Channel 4, a long stint on BBC television’s Casualty to more recent appearances in Welsh smash hit dramas Bang, Keeping Faith, It's a Sin, Cyswllt and The Pembrokeshire Murders. Suzanne also played opposite John Malkovich in Agatha Christie's ABC Murders. She’s a member of the BiBi Crew who produce their own high-quality new writing from an Afro-Caribbean perspective, co-author of Still Breathing: 100 Black Voices on Racism and a co-director of GoDadRun, a charitable project that was created by her brother; world champion athlete Colin Jackson.