29+ Great images of Nick Gehlfuss
29+ Great images of Nick Gehlfuss. Nicholas alan nick gehlfuss (born january 21, 1985) is an american actor. Will halstead in chicago med, but the talented actor's come a long way to be . Will halstead on chicago med. 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. 65380 likes · 46 talking about this.