Daniel Casey is an English actor who is best known for playing DS Gavin Troy in the first six series of the long-running television programme Midsomer Murders. He has also appeared in a number of other television shows, including Our Friends in the North, Steel River Blues, and Marchlands.

Casey was born in Stockton-on-Tees, County Durham, England, in 1972. He studied English literature at Durham University, and then trained as an actor at the Drama Centre London.