Old Heidelberg: Reparto
Wallace Reid
Prince Karl Heinrich
Dorothy Gish
Katie Ruder
Karl Formes
Dr. Juttner
Erich von Stroheim
Lutz
Raymond Wells
Karl Bilz
John McDermott
Von Wendell
James Gibson
Kellerman
Franklin Arbuckle
Fritz Ruder - Katie's Father
Madge Hunt
Frau Hans Ruder - Katie's Aunt
Erich von Ritzau
Prince Rudolf (as Erik von Ritzau)
Kate Toncray
Frau Fritz Ruder - Katie's Mother
Harold Goodwin
Prince Karl - Age 12
Francis Carpenter
Prince Karl - Age 5