| Name | Book/story/stage title | Notes |
| Zilch, Herman | Pearls, Girls and Monty Bodkin | Band leader and singer |
| Zinzinheimer, Isadore | Came the Dawn | The representative of a Hollywood film company |
| Zizzbaum, Ben | The Rise of Minna Nordstrom | President of the Zizzbaum-Celluloid Corp |
| Zizzbaum, I. J. | Laughing Gas | A dentist |