Joe Gayton Creator, Executive Producer, Writer Tony Gayton Creator, Executive Producer, Writer Anson Mount Cullen Bohannon Actor Colm Meaney Thomas "Doc" Durant Actor Phil Burke Mickey McGinnes Actor Christopher Heyerdahl The Swede Actor Jennifer Ferrin Louise Ellison Actor Robin McLeavy Eva Actor Dohn Norwood Psalms Actor Chelah Horsdal Maggie Palmer Actor Tim Guinee Collis Huntington Actor Reg Rogers James Strobridge Actor Byron Mann Chang Actor MacKenzie Porter Naomi Bohannon Actor Tzi Ma Tao Actor Andrew Howard Johnny Shea Actor Gregg Henry Brigham Young Actor David Wilson Barnes Martin Delaney Actor Josh Caras Guest Star Paige Patterson Guest Star Victor Slezak Guest Star Michael Shepherd Guest Star Paul Wu Guest Star David Haysom Guest Star Jeremy Gold Executive Producer John Shiban Executive Producer David Von Ancken Executive Producer John Wirth Executive Producer