Nick Carlyle is a key character in the video game 'Lollipop Chainsaw.' He is the boyfriend of protagonist Juliet Starling. Early in the game, Nick is bitten by a zombie, but Juliet saves him by decapitating him and enchanting his head, allowing him to survive as a talking head. Throughout the story, Nick provides comic relief and emotional support, assisting Juliet on her journey to save her school and family from a zombie outbreak.