Dirk Pitt is a fictional character, the protagonist of a series of bestselling adventure novels written by Clive Cussler. Dirk is an adventurer who seizes the opportunity to save the day. Through action-filled story lines, Pitt is portrayed as a man who is in love with the sea and does not fear pushing the envelope. The character is an avid collector of cars, a characteristic shared with his creator, Clive Cussler.