• 
  Peter Thomas

  Himself - Narrator
• 
  Richard Serlen

  The Mystery Murderer
• 
  Stosh Zona

  Detective
• 
  Lugene Kelley

  Karla Van Dusen
• 
  Laurence Mullaney

  Detective Shaw
• 
  Robert Shrader

  Himself - Criminal Investigation Division
• 
  Billie Farris

  Herself - Karla's Mother
• 
  J.R. Burton

  Himself - Criminal Investigation Division

• 
  Candace Rondeaux

  Herself - Journalist
• 
  Kimberly Cashwell

  Herself - Latent Print Examiner
• 
  Erica Henderson

  Herself - Firearms Analyst
• 
  Melissa Suddeth

  Herself - DNA Analyst
• 
  Rick Shaw

  Himself - Detective
• 
  William Deparvine

  Himself - Murderer (archive footage)
• 
  Steven Seay

  Himself - Juror