Joel McCrea
William Thomas Green Morton
Edwin Maxwell
Vice-President of Medical Society
Porter Hall
President Franklin Pierce
Roscoe Ates
Morton's Sign Painter - replaced by Hank Worden (uncredited)
Franklyn Farnum
Massachusetts Medical Society Man (uncredited)
Byron Foulger
Morton's Clinic Manager (uncredited)
Hank Worden
Morton's Sign Painter - replaced Roscoe Ates (uncredited)
Arthur Hoyt
Presidential Secretary (uncredited)