Mari Izzard is a fluent Welsh-speaking actor and writer from Bridgend, South Wales, who also happens to be an identical twin!

Mari trained at the Royal Welsh College of Music and Drama, before completing an MA in Writing for Stage and Broadcast Media at the Royal Central School of Speech and Drama. As a writer, she was nominated for a Stage Debut Award in 2020 for her dystopian bilingual play HELA.

Her recent work includes the lead role of Daisy in How to Bury Imogen (Theatre Royal Bath/Southwark Playhouse, 2025), alongside development and workshop projects with English Touring Theatre, the Royal Shakespeare Company, and Sherman Theatre. Further recent stage credits include Without Fire (ETT/Bristol Old Vic), Finding Home (Chapter Arts Centre), From Lewisham to Llandudno (RSC), Olwen and Bobby and Amy (Sherman Theatre), and Spoffin (Birmingham REP/Sky Studios).

She appears in the BFI/Film4 feature Brian and Charles, directed by Jim Archer, and her television credits include Sitters (BBC Three) and Gwaith/Cartref (S4C), in which she played a series guest lead. Her film work also includes Wherever You Go, Milk Teeth, and Money Now. She began her screen career with an early appearance in Doctor Who (The Empty Child / The Doctor Dances).

Additional theatre credits include Pride & Prejudice (Regent’s Park Open Air Theatre), A Midsummer Night’s Dream (RSC), Comedy of Errors (Storyhouse), Wolfie and Mametz (National Theatre Wales), and Lord of the Flies (Theatr Clwyd/Sherman Theatre). Her voice work includes campaigns for Organ Donation Wales and the Chartered Society of Physiotherapy, as well as BBC audio drama.