Lionel Barrymore
Professor Zelin
Sir Borotyn, a prominent Prague resident, is discovered murdered in his home, with all indications pointing to a vampiric assault. The victim's friend, Baron Otto, and the physician who analyzes the body, are certain that the vampire is either the mysterious Count Mora or his daughter. Receiving little help from the law, occult expert Professor Zelen is sought to assist with their investigation.
Mark of the Vampire
Professor Zelin
Irena Borotyn
Count Mora
Inspector Neumann
Baron Otto
Fedor Vincente
Dr. Doskil
Midwife
Jan
Chauffeur
Maria
Annie
Luna
Sir Karell Borotyn
Innkeeper
Coroner (uncredited)
Fat Man (uncredited)
Gypsy (uncredited)
Old Gypsy Woman (uncredited)
Режиссёр
