Luke Haldeman was an 09er and baseball player at Neptune High. He got caught up in doing and smuggling drugs, including steroids. He had to sell his signed baseball to pay back the drug dealer whose merchandise Troy Vandegraff stole on the way back from Tijuana. He also provided Dick Casablancas with the GHB that, though intended for Madison Sinclair, ended up drugging Veronica at Shelly Pomroy's party.