Steven Miller (born 13 March 1982) is a Scottish actor best known for his role as Lenny Lyons in the long-running British medical drama Casualty. He trained at the Bristol Old Vic Theatre School and is originally from Tillicoultry. Other TV shows he has appeared in are Holby City, The Composer's Specials and The Bill. He became more widely known since he appeared as supporting actor in the 2025 Scottish series Dept. Q.