Nicholas Alan Gehlfuss is an American actor, known for his starring role as Dr. Will Halstead in NBC's medical drama Chicago Med. He appeared as Robbie Pratt in the fourth season of Showtime's comedy-drama Shameless.
The Walking Dead: Season Two, continues the story of Clementine, a young girl orphaned by the undead apocalypse. Left to fend for herself, she has been forced to learn how to survive in a world gone mad.
