Nick GehlfussActingJanuary 21, 1985 (41 years old)Cleveland, Ohio, USAPopularity: 1InstagramTwitterFacebookIMDbBiographyNicholas 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.Also Known Asنیک گهلفوس • نیک گلهفوسRecent & Upcoming8.6CIABill Goodman • Feb 2026Known For8.2ShamelessRobbie Pratt8.4Chicago FireWill Halstead8.4Chicago P.D.Will Halstead8.1Person of InterestJack Hughes8.3Chicago MedDr. Will Halstead7.6The Good WifeJesse8.3It's Always Sunny in PhiladelphiaSean7.9Rizzoli & IslesJack Roberts7.7LongmireCameron Maddox8.1The NewsroomRoss Kessler7.5Army WivesSergeant Joe Corey6.9The GladesRandy DillardPhotos of Nick GehlfussFilmographyMovies4TV Shows16AllCast4CrewBrowse All2010s5.6EquityGabe7.1Love & MercyBruce Johnston4.8Sam Steele and the Junior Detective AgencyMartinson RadioTBAButterfly in the TypewriterJoel Fletcher