Robert Taylor Walt Longmire Actor Lou Diamond Phillips Henry Standing Bear Actor Katee Sackhoff Victoria Moretti Actor Cassidy Freeman Cady Longmire Actor Adam Bartley The Ferg Actor A Martinez Jacob Nighthorse Guest Star Zahn McClarnon Officer Mathias Guest Star Louanne Stephens Ruby Guest Star Derek Phillips Travis Murphy Guest Star Josh Stamberg U.S. Marshal Hammond Guest Star Mary Wiseman Meg Joyce Guest Star Marylouise Burke Beverly Guest Star Robert Baker Joe-Mega Guest Star Joel Johnstone U.S. Marshal Peters Guest Star Robert Clendenin Jamie DeBell Guest Star Scott Michael Campbell Dr. Weston Guest Star Nikki Donley Dr. Sanders Guest Star Austin Rising Donnie Guest Star Hunt Baldwin Executive Producer John Coveny Executive Producer Greer Shephard Executive Producer Michael M. Robin Executive Producer Zetna Fuentes Director Leo Geter Writer