Cast & Crew zu Paranormal Activity 3
| Katie | Katie Featherston | |
| Kristi Rey | Sprague Grayden | |
| Julie | Lauren Bittner | |
| Young Katie | Chloe Csengery | |
| Dennis | Christopher Nicholas Smith | |
| Young Kristi Rey | Jessica Tyler Brown | |
| Daniel Rey | Brian Boland | |
| Randy Rosen | Dustin Ingram | |
| Dr. Fredrichs | Mark Fredrichs | |
| Regie |
Henry Joost Ariel Schulman |
|
| Buch |
Christopher B. Landon |
|
| Kamera |
Magdalena Gorka Bonacorso |
|
| Schnitt |
Gregory Plotkin |
|