Ty Glaser (born 12 November 1982) is a British film, stage and television actress, best known for her role as Dr. Gemma Wilde on the BBC drama series Holby City. She has appeared in a number of other TV series including Secret Diary of a Call Girl, Above Suspicion, The Bill and most notably a stint in Emmerdale as Libby Charles. She made her film debut in 2006 with a minor role as a police officer in The Parole Officer and most recently appeared in Hard Boiled Sweets.