Trailer
 | Luke Adams as Young Jeff Dahmer / Young Lionel Dahmer |
| Rusty Sneary as Adult Jeff Dahmer |
| Lucille Louise as Baby Jeff Dahmer |
 | Bo Svenson as Detective John Amos |
| Scott Cordes as Lionel Dahmer |
| Cathy Barnett as Shari Dahmer |
| Jeannine Hutchings as Catherine Dahmer |
| Frankie Krainz as Victim No. 1 |
 | Kip Niven as Attorney Howard Parker |
| Granvile O'Neal as Detective |
 | Walter Coppage as Judge |
| Jeph Scanlon as Mark Stanton |
| Kaitlyn Williams as Little Girl |
| Kathleen Warfel as Dr. Price |
| Erin McGrane as Joyce Dahmer |
| Directing | |
| Rich Ambler | Director |
Writing | |
| Wood Dickinson | Writer |
| Christopher Ryan | Writer |
