Suzette Llewellyn trained at LAMDA, graduating in 1983. Her professional debut was with the Northumberland Touring Company playing Viola in Twelfth Night. Llewellyn was nominated for the Deveraux Award for her performance in the BBC television series Black Silk.

Other credits include a production of A Midsummer Night's Dream at the Wolsey Theatre, Ipswich playing Titania/Hippolyta (no further information known about these productions; info from her theatre biographies).