Gretchen Siegfried.
Daughter of former KAOS executive Conrad Siegfried.
On the instructions of her father, Gretchen seduces and kidnaps Zach Smart as part of a plan to exact revenge on Maxwell Smart and his "goody-two-shoes friends" who Siegfried holds responsible for the end of the Cold War and consequent loss of his job.
Portrayed by Leah Lail [GS95 Episode #6: "Wurst Enemies"].