Dexter is an American television series that premiered in 2006, starring Michael C. Hall as Dexter Morgan, a forensic blood-spatter analyst who leads a secret double life. His restrained, often unsettling laugh became closely associated with the character's dark humour and detached way of seeing the world. Clips of the laugh later circulated online as a reaction sound, shared in memes, edits and short videos whenever a moment felt creepy, ironic or darkly funny. Its short length and instantly recognisable tone have kept it useful for creators long after the show's original run.