Michael Zegen is an American actor. He plays New York criminal Benjamin Siegel in Boardwalk Empire. He is a co-star in the second and third seasons. He previously worked with Boardwalk Empire show runner Terence Winter on the series The Sopranos. Zegen played a partygoer in the episode "All Due Respect". He has been active since 2002 and also had a recurring role in the HBO series How To Make It In America as Andy Sussman. He has also appeared in the series Rescue Me (as Damien Keefe) and The Walking Dead (as Randall Culver) and the films The Girl Next Door (2007), Adventureland (2009), and The Box (2009).