David M. Barrett made his Discovery directing debut with "Magic to Make the Sanest Man Go Mad," but it was not his Trek debut, as he helmed the "Divergence" episode of Enterprise back in 2005. Hailing from California, he started out as a stuntman before becoming a second unit director. Barrett then moved into producing and directing, and counts among his dozens of directing credits FreakyLinks, Veronica Mars, Cold Case, NCIS: Los Angeles, V, Castle, The Mentalist, Under the Dome, Blue Bloods and Zoo