(in alphabetical order)
(in credits order)
- John Mallia(archive footage)
- Errol Toulon(as Dr. Errol Toulon)
- Mari Gilbert(archive footage)
- Melissa Cann(archive footage)
- Thomas Spota(archive footage)
- Geraldine Hart(archive footage)
- Dave Schaller(archive footage)
- Lorraine Ela(archive footage)
- Lynn Barthelemy(archive footage)
- Ray Tierney(archive footage) (as Raymond Tierney)
- Etienne De Villiers(archive footage)
Rest of cast listed alphabetically
- Melissa Barthelemy(archive footage)
- John Bittrolff(archive footage)
- Maureen Brainard-Barnes(archive footage)
- James Burke(archive footage)
- Amber Costello(archive footage)
- Ronald DeFeo(archive footage) (as Ronald DeFeo Jr.)
- Shannan Gilbert(archive footage)
- Rex Heuermann(archive footage)
- Victoria Heuermann(archive footage)
- Christopher Loeb(archive footage) (as Chris Loeb)
- Joel Rifkin(archive footage)
- Robert Shulman(archive footage) (as Robert Schulman)
- Megan Waterman(archive footage)
- Alice Miller(uncredited)
