The writers that gave him his first technical advisor work were former
UCLA extension students of his mother.
The only technical advisor to have served in federal and city law
enforcement agencies in street, intelligence, and supervisory roles by
the age of 30.
He has been assigned to many violent civil protests, a Presidential
Inaugeral, three Anti-Terror units, the September 11, 2001 rescue
efforts in Washington, DC, and the Washington-area Sniper Task Force of
2002.
The son of director and lighting designer Michael L. Mannes and actress and drama professor Valerie Mamches and stepson of actress Carol Harris. His mother's former students include Shane Black, Hannah Shakespeare, and Jean-Claude Vandamme.