UPDATED: Jake Weber will board the AMC Western for its upcoming fourth season.

AMC's Hell on Wheels is adding a new face to its ranks for season four.

Medium alum Jake Weber has boarded the Western as a new series regular, The Hollywood Reporter has learned.

Weber will play John Campbell is a transplanted carpetbagger using his Reconstruction bag of tricks to profit from the frontier. He and his corrupt entourage will complicate life for every character who sets foot in Cheyenne.

PHOTOS: Faces of Pilot Season 2014

The actor most recently had a three-episode arc on Fox's The Following, playing Micah, in addition to guest gigs on Elementary, House and Royal Pains. Since his regular role on Medium, playing Joe Dubois, he had mostly focused on films, with roles in White House Down and The Haunting of Molly Hartley, among others. He's repped by Paradigm and Framework Entertainment.

AMC renewed Saturday staple Hell on Wheels for a fourth season back in November. The drama will return in the summer for an expanded 13-episode run.

EDITOR'S NOTE: This story has been amended to reflect new character details.

Email: Lesley.Goldberg@THR.com

Twitter: @Snoodit