Dexter trained at RADA as an Actor. He is now writing with a particular focus on stories of the unvoiced.
In 2018 FOXES was a finalist for the Alfred Fagon Award for Best New Play of the Year. It received its world premiere at London's Theatre503 in 2021 and is published by Methuen.
In 2019 Dexter was chosen to participate in the Royal Court Theatre's Introduction to Playwriting Group. In 2021 Dexter was announced as one of five recipients of a new Screenwriting Bursary from Neal Street Productions. In 2022 Dexter was chosen to participate in Hampstead Theatre's Inspire group and will write a full length play for them.
Dexter is currently writing a feature film for Joi Productions and Netflix. He is also currently in a writers room for Gaumont.