While Matthew Lillard is best known for his turns in the movies Scream and Scooby-Doo, he also played a memorable character on the police procedural Criminal Minds. First rising to prominence in the mid-1990s in such films as Serial Mom and Hackers, Lillard quickly became one of the most versatile young stars in Hollywood. With his deceptively wide range and affable demeanor, he set himself apart from his youthful contemporaries through the sheer number of characters he could play. Even as he stopped starring in blockbuster movies, Lillard found a new niche for himself as a brilliant character actor, and shows like Criminal Minds were a perfect fit.

Running for 15 seasons during its initial stint on the air, Criminal Minds was a change of pace from the usual police procedural because it called on the real science of criminal profiling. Set within the FBI's Behavioral Analysis Unit, the series...