anson adams mount iv (born february 25, 1973) is an american actor. he is known for his television roles such as cullen bohannon in the amc series "hell on wheels" (2011–2016), jim steele in the nbc series "conviction" (2006), marvel superhero black bolt in "inhumans" (2017) and captain christopher pike in ' and ' (2019). he also appeared in the movie "tully" (2000).