Inspector Holtz, played by Lionel Atwill, is a character in the film House of Dracula.
After Lawrence Talbot has himself arrested, knowing the full moon is rising, Inspector Holtz witnesses him transforming into the Wolf Man. Later Holtz chases a killer who he believes to be Talbot, but it really Dr. Franz Edelmann, to the castle. Holtz and Steinmuhl lead the townspeople to the castle, where the police attack the monster, but are subdued by the creature. Edelmann kills Holtz by accidental electrocution, and Talbot shoots Edelmann dead.