- Dawson Casting: Jennifer Carpenter, 26 at the time of filming, plays the 19 year old Emily Rose but ends up looking almost like Emily is meant to be in her 30s, in part due to Carpenter's own mature features.
- Designated Villain: Ethan Thomas who is antagonistic but only to the extent of the case. He is after all the prosecutor. Could fall into Hero Antagonist territory, as he is never presented as malicious.
- The Woobie: Emily.
YMMV / The Exorcism of Emily Rose