Gutierrez Mangansakan II, or Tng Man (pronounced teng man), is a published author, art scholar, educator and an award-winning filmmaker. He descended from the traditional aristocracy of Maguindanao, southern Philippines. Eschewing familial obligations in politics, he chose the subversive pathway and became an artist, which is, to his people's minds, just a pretty euphemism for being a bum.

He is one of the leading figures of the Regional Cinema movement in the Philippines. With a film career spanning more than twenty years, he has written, directed and produced numerous films which have garnered international critical acclaim and prizes. In 2010, his debut feature Limbunan was a finalist of the Cinemalaya Philippine Independent Film Festival, a nominee in the Gawad Urian (Critics Prize) for best film, and the closing film of the Critics Week section of the prestigious Venice International Film Festival. His other films include Cartas de la Soledad (Letters of Solitude), Qiyamah, Forbidden Memory, The Obscured Histories and Silent Longings of Daguluan's Children, Daughters of the Three Tailed Banner and Bird of History which have been screened in more than 100 film festivals around the world.

Tng Man has authored, edited or contributed to more than two dozen books in the Philippines and overseas. He was a writer-in-residence of the University of Iowa's International Writing Program in 2008 in the U.S., and a fellow of the 54th University of the Philippines National Writers Workshop in 2015.

In 2018, he was a mentor of the Asia Pacific Screen Lab - Griffith Film School of the University of Queensland, Australia.

In September 2019, during the centennial of Philippine cinema, he was honored by the Office of the President-Film Development Council of the Philippines as a luminary of Philippine cinema for his artistry, vision and contribution to the development of the Philippine national cinema.

He lives in General Santos City with his 14 cats.