Nicholas Gehlfuss is an American actor, known for his role in 2014 as Robbie Pratt in the fourth season of the Showtime family comedy-drama Shameless.
In 2015, he started starring as Dr. Will Halstead in the NBC medical drama Chicago Med.
In 2014, Gehlfuss had a recurring role as Robbie Pratt in the fourth season of the Showtime family comedy-drama Shameless.
[1] In 2015, he guest-starred as Dr. Thomas Galen in the short-lived NBC horror drama Constantine in the penultimate episode "Angels and Ministers of Grace".
[2] Later that year, Gehlfuss was cast in the NBC medical drama Chicago Med as Dr. Will Halstead.