Delroy L. Paulhus is a personality psychology researcher and professor. He received his doctorate from Columbia University and has worked at the University of California, Berkeley and the University of California, Davis. Currently, Paulhus is a professor of psychology at the University of British Columbia in Vancouver, Canada where he teaches undergraduate and graduate courses.[1] He is best known for being the co creator of the dark triad, along with fellow researcher Kevin Williams.[2][3][4]