Mark of the Vampire

Sir Borotyn, a prominent Prague resident, is discovered murdered in his home, with all indications pointing to a vampire assault. The victim's friend, Baron Otto, and the physician who analyzes the body, are certain that the vampire is the mysterious Count Mora or his daughter. Receiving little help from the law, Professor Zelen, an expert in the occult, is called in to assist with their investigation.

• 
  Lionel Barrymore

  Professor Zelin
• 
  Elizabeth Allan

  Irena Borotyn
• 
  Bela Lugosi

  Count Mora
• 
  Lionel Atwill

  Inspector Neumann
• 
  Jean Hersholt

  Baron Otto
• 
  Henry Wadsworth

  Fedor Vincente
• 
  Donald Meek

  Dr. Doskil
• 
  Jessie Ralph

  Midwife
• 
  Ivan F. Simpson

  Jan
• 
  Franklyn Ardell

  Chauffeur