Diaboli Ending Explained: Set during the Holy Crusades after the fall of Jerusalem, King Richard I joins a doomed holy war as people of all faiths confront a brutal power struggle and the terrifying return of a Devil never before seen on Earth. Directed by Shaddy Safadi, this 2025 animation film stars Sinéad Phelps (Mother (voice)), alongside Jim High as Priest (voice), Zach Slouka as John (voice), Lauren Mercier as Additional VO (voice). With a 6/10 rating, the ending has divided audiences.

What Happens at the End of Diaboli?

Set during the Holy Crusades after the fall of Jerusalem, King Richard I joins a doomed holy war as people of all faiths confront a brutal power struggle and the terrifying return of a Devil never before seen on Earth.

How Does Sinéad Phelps (Mother (voice))'s Story End?

  • Sinéad Phelps: Sinéad Phelps's storyline wraps up in the final act, though some viewers have found the resolution more ambiguous than expected.
  • Jim High (Priest (voice)): Jim High's role in the climax proves pivotal to how the central conflict resolves.
  • Zach Slouka (John (voice)): Zach Slouka's character undergoes a significant shift in the final act.

What Does the Ending of Diaboli Mean?

Diaboli's ending attempts to resolve the major plot threads, though some narrative elements involving Sinéad Phelps may feel rushed. Shaddy Safadi's final act has been both praised for its ambition and criticized for its execution.