Luke Schelhaas is a former writer of Smallville.
He wrote four episodes for Season Four:
- Devoted (directed by David Carson) - Clark gets the starting quarterback position on the football team when his predecessor attacks Jason. When Chloe and Jason Teague also exhibit strange lovesick behavior, Clark and Lois investigate and discover that the cheerleaders are giving the team a kryptonite-enhanced love potion to turn them into obedient mindless boyfriends.
- Bound (directed by Terrence O'Hara) - Lex is accused of killing a young woman and Clark turns to Lionel for help. Meanwhile, Lana has a dream of her ancestor and a mysterious second woman - a dead ringer for Jason's mother Genevieve, who arrives to visit her son and his new girlfriend.
- Krypto (directed by James Marshall) - Lois accidentally hits a dog and brings it back to the farm to heal, but Clark quickly realizes it has super strength. He investigates and discovers it was part of an aborted LuthorCorp experiment... and that robbers are using the dogs to help them steal money. Meanwhile, Lana wonders what Jason is up to with his mother, and Jason is forced to ask Genevieve a few questions of his own.
- Spirit (directed by Whitney Ransick) - On the eve of the Smallville High School Prom, stuck-up Prom Queen candidate Dawn Stiles is pulled into a coma when she is involved in a car crash and ends up in a ravine filled with dozens of chunks of kryptonite. Dawn finds her spirit can possess the bodies of others, where she continues her quest to become Prom Queen.