Captain Largo is Jim Chee's boss and the voice of reason that Chee regularly disregards.

A member of the Cayuga nation within the Haudenosaunee (Iroquois) Confederacy, Gary Farmer has worked as an actor, director, producer, and journalist for more than 20 years. He has appeared in more than a dozen feature films, including the road movie Powwow Highway (with Graham Greene), Jim Jarmusch's eccentric western Dead Man, and the award-winning Smoke Signals. Farmer has won the Filmmakers Award at the U.S. Film Festival and the Best Actor Award at the American Indian Film Festival. He is publisher and editor-in-chief of the award-winning Aboriginal Voices, The Magazine of Evolving Native American Arts & Culture, and is a board member with the Ontario Arts Council.

In Hillerman's words:
Captain Largo, as neat as the house but somewhat smaller, was standing on the porch. He was talking to a skinny tribal policeman and a neat young man in a felt hat and a dark gray business suit -- which meant in Four Corners country that he was either an agent of the Federal Bureau of Investigation or a young man making his mission for the Church of Jesus Christ of Latter Day Saints. Largo's bulk made them both look unnaturally small.

Coyote Waits, Chapter 13