Hell on Wheels (season 3)

The third season features ten series regulars. Kasha Kropinski and Dohn Norwood are promoted from recurring status, and Jennifer Ferrin is added to the main cast.

• Anson Mount as Cullen Bohannon, a former Confederate soldier, who puts vengeance and his past behind him to serve as head of the Union Pacific Railroad. (10 episodes)
• Colm Meaney as Thomas "Doc" Durant, who fights his way back from prison and political ruin to regain power over the railroad. (10 episodes)
• Common as Elam Ferguson, an emancipated slave, is now the new chief of railroad police, he is engaged to Eva. (10 episodes)
• Christopher Heyerdahl as Thor Gundersen also known as "the Swede", he's being nursed back to health by a family of Mormons after barely surviving a fall from a bridge. (6 episodes)
• Jennifer Ferrin as Louise Ellison, a smart, witty, and flirtatious journalist hired by the New York Sun to cover the "story of the century". (7 episodes)
• Robin McLeavy as Eva Toole (née Oates), a former Indian captive turned whore, is now engaged to Elam. (10 episodes)
• Phil Burke as Mickey McGinnes, the new owner of the whorehouse in Cheyenne. (9 episodes)
• Ben Esler as Sean McGinnes, after finding work as Cullen's railroad accountant, Sean has found his loyalties divided once again after Durant recruits him to work as his spy in Hell on Wheels. (8 episodes)
• Kasha Kropinski as Ruth, after her father's death, she sets down roots as preacher in the burgeoning city of Cheyenne. (10 episodes)
• Dohn Norwood as Psalms, a former slave and criminal, whose prison sentence has been purchased by the railroad. (7 episodes)

• Tayden Marks as Ezra Dutson (7 episodes)
• Kira Bradley as Eleanor Dutson (4 episodes)
• Chelah Horsdal as Maggie Palmer (4 episodes)
• Serge Houde as Congressman Oakes Ames (4 episodes)
• Sean Hoy as Joseph Dutson (4 episodes)
• Haysam Kadri as Dutch (4 episodes)
• Damian O'Hare as Declan Toole (3 episodes)
• James Shanklin as Aaron Hatch (3 episodes)
• Tim Guinee as Collis Huntington (2 episodes)
• Siobhan Williams as Naomi Hatch (2 episodes)

Filming of the third season was suspended on June 20, part way through the sixth episode, as the location was part of the mandatory evacuation area due to the flooding in southern Alberta.[6] Originally producers had announced a two-day shut down, when only the road to the location was under water.[7] Later on June 21, producers announced that the production hiatus that was scheduled to begin on June 27 would take effect immediately.[6] Anson Mount shared pictures of the flooding of the nearby river and the exterior sets via Twitter on June 20 and 21.[6][8][9] In an August 2013 interview, Mount called the situation "precarious," adding, "We had (production assistants) posted along the river with measuring sticks. We were continuing to work through the day until the local government told us we had to leave." Calgary producer Chad Oakes called it "a true defining moment" of his career: "The credit goes to people who gave up their hiatus, worked around the clock, seven days a week, over the long weekend and having their families and kids understanding that this was so critical ... We could not fail. The repercussions of losing not only the season but the whole series was definitely sitting in our laps."[10]

For the sixth episode of the season, "One Less Mule", series producer and star Anson Mount asked musician Charlie Daniels to create a song to which his Cullen Bohannon and Louise Ellison dance. Daniels wrote and recorded "a little fiddle tune" with acoustic instruments. He said he "imagined somebody in a beer joint in a railroad town back in the 1800s." He called the tune "Hell on Strings."[11]