Character Ages+*refers to Search Toggle navigation activity Toggle Dropdown history discuss follow editors rules Toggle Dropdown common by group by name recent edit Toggle Dropdown content name type refresh children mates references out references in 1x01 - Wolf Moon Jeff Davis, Jeph Loeb, Matthew Weisman ... Derek's age There is a lot of debate about Derek's actual birthday, which has a knock-on effect on how old he was when Kate seduced him. ...