48+ Get Pictures of Nick Gehlfuss

48+ Get Pictures of Nick Gehlfuss. 'chicago med' star nick gehlfuss and how the possibility of working with al pacino made him freeze during an audition. 65380 likes · 48 talking about this. From the very beginning of chicago med's run, nick gehlfuss has been a core member of the cast in his role as doctor will halstead. Will halstead on chicago med. Nicholas alan nick gehlfuss (born january 21, 1985) is an american actor.