Outlander's 18th-century timeline was marked by conflicts and the emergence of several ill-intentioned characters. Some of the notable villains that Claire and Jamie encountered were Laoghaire MacKenzie, Stephen Bonnet, and Black Jack Randall. Each villain posed unique threats and caused a lot of trouble for the protagonists. From causing anguish to attempting to eliminate Claire, these villains kept viewers on edge. In the end, justice prevailed for some, while others met their demise at the hands of the Fraser clan or other means.