"The biography of Dr. W.T. Morgan, a 19th century Boston dentist, during his quest to have anesthesia, in the form of ether, accepted by the public and the medical and dental establishment."
Joel McCrea
as William Thomas Green Morton
Betty Field
as Elizabeth Morton
Harry Carey
as Professor John C. Warren
William Demarest
as Eben Frost
Louis Jean Heydt
as Dr. Horace Wells
Julius Tannen
as Dr. Charles T. Jackson
Edwin Maxwell
as Vice-President of Medical Society
Porter Hall
as President Franklin Pierce
Franklin Pangborn
as Dr. Heywood
Grady Sutton
as Homer Quimby
Donivee Lee
as Betty Morton
Harry Hayden
as Judge Shipman
Torben Meyer
as Dr. Dahlmeyer
Victor Potel
as First Dental Patient
Thurston Hall
as Senator Borland
J. Farrell MacDonald
as The Priest
Roscoe Ates
as Morton's Sign Painter - replaced by Hank Worden (uncredited)
Hank Bell
as Onlooker (uncredited)
Franklyn Farnum
as Massachusetts Medical Society Man (uncredited)
Byron Foulger
as Morton's Clinic Manager (uncredited)
Hank Worden
as Morton's Sign Painter - replaced Roscoe Ates (uncredited)
Arthur Hoyt
as Presidential Secretary (uncredited)
Preston Sturges
Director
Screenplay
René Fülöp-Miller
Writer
Buddy G. DeSylva
Executive Producer
Victor Young
Original Music Composer
Stuart Gilmore
Editor
Hans Dreier
Art Direction
Ernst Fegté
Stephen Seymour
Set Decoration
Edith Head
Costume Design
Wally Westmore
Makeup Artist
Victor Milner
Director of Photography