On February 15, 1992 in Milwaukee, Wisconsin, Jeffrey Dahmer, one of the world's most infamous serial killers, was convicted of 15 counts of murder and sentenced to 937 years in federal prison. This movie is based on events from his life.
| Actor | Role |
|---|---|
 Jeremy RennerJeffrey Dahmer | Jeffrey Dahmer |
 Bruce DavisonLionel Dahmer | Lionel Dahmer |
 Artel GreatRodney | Rodney |
 Matt NewtonLance Bell | Lance Bell |
 Dionysio BascoKhamtay | Khamtay |
 Kate WilliamsonGrandma | Grandma |
 Lily KnightMrs. Dahmer | Mrs. Dahmer |
| CChristina PayanoLetitia | Letitia |
| TTom'ya BowdenShawna | Shawna |
 Sean BlakemoreCorliss | Corliss |
| MMickey SwensonOfficer Phillips | Officer Phillips |
| JJulius BrancaOfficer Powell | Officer Powell |
| PPierson BlaetzOfficer Martin | Officer Martin |
| VVincent ZangariOhio Officer | Ohio Officer |
| XXavier LawrenceYoung Man in Bar | Young Man in Bar |
 David ManisShop Steward | Shop Steward |
| SSteve KeyesNew Guy | New Guy |
| DDaniel McInerneyBartender | Bartender |
| AArchie HowardBouncer 1 | Bouncer 1 |
| DDamian ForesterBouncer 2 | Bouncer 2 |
| CChristopher LouisCorpse | Corpse |
 Beau ClarkParty Kid (uncredited) | Party Kid (uncredited) |