Pete Smith
— Narrator
George Du Count
— Dr. Crawford Long (uncredited)
Eddie Gribbon
— English Dentist (uncredited)
Danny Jackson
— Little Boy (uncredited)
Eugene Jackson
— Colored Boy 1839 (uncredited)
Mitchell Lewis
— Minor Role (uncredited)
Alberto Morin
— Egyptian Patient (uncredited)
Tom Rutherford
— Humphrey Davy (uncredited)
Walter Soderling
— James Venable 1843 (uncredited)
Will Stanton
— Dental Patient (uncredited)
Phillip Terry
— P.A. Wilhite (uncredited)
Beverly Wills
— Little Girl (uncredited)