as William Thomas Green Morton

as Elizabeth Morton

as Professor John C. Warren

as Eben Frost

as Dr. Horace Wells

as Dr. Charles T. Jackson

as Vice-President of Medical Society

as President Franklin Pierce

as Dr. Heywood

as Homer Quimby

as Betty Morton

as Judge Shipman

as Dr. Dahlmeyer

as First Dental Patient

as Senator Borland

as The Priest

as Morton's Sign Painter - replaced by Hank Worden (uncredited)

as Onlooker (uncredited)

as Massachusetts Medical Society Man (uncredited)

as Morton's Clinic Manager (uncredited)

as Morton's Sign Painter - replaced Roscoe Ates (uncredited)