Once Upon A Time producers have tapped Last Resort's Chad Michael Collins for the upcoming role of Gerhardt. Previously, not much was known about this character except his description; a family man, ‘good natured’ and filled with ‘idealism’; the kind of guy any parent would be proud of. Now I'm happy to spoil that Gerhardt is in fact Dr. Whale's aforementioned younger brother and is set to appear in episode 12 of Once Upon A Time. In know you want to, so go ahead and hit the comments below with your thoughts and speculations!!
Source: TV Line