Mike Coolen was born on June 9, 1975. He joined Within Temptation in 2011 as the bands drummer.
Coolen's hobbies include playing the Playstation 3, going out for runs, "trying to play the guitar", recording in his home studio and reading Stieg Larsson. His favourite music includes Stone Sour, Muse, Foo Fighters and Nine Inch Nails. His favourite movies are Star Wars, Minority Report, War of the Worlds and Lord of the Rings.