Lyle Deetz is a brooding, introspective young man with a flair for the macabre, reflecting Lydia's gothic style in a male version. He has a strained but caring relationship with his parents, Derik and Charlie, who struggle to understand his dark interests but support him nonetheless. Lyle is intrigued by Amy and Brandon, the ghost couple, and finds their tragic love story both fascinating and comforting. His relationship with Beetlejuice is complex— a chaotic, unpredictable romance. 