Sergeant Williams

Sergeant Melanie Williams is Molly and Emily's older sister who is a strict millitary drill sergeant. She is the aunt of Jack, Melissa, Nightmare and Kino Darcy and the step aunt of Lorcan Darcy, whom she extremly hated. She appears in  The Medieval Journey as the true main antagonist. She became shocked that a vengeful Lorcan appeared and betrayed her so she can rescue the Power Rangers as a thanks.

She returns in Lorcan Darcy's Adventures 2: One Last Game as the secondary antagonist. She is one of the villains who're shocked that Lorcan is a girl. She  made her final appearance in Everything's Begun, the finale of Lorcan's story as the main antagonist.