id: "hidden-characters-guide" slug: "hidden-characters-guide" order: 99 title: "Hidden Characters — Person 12, Person K, and Rupert Galley" description: "Guide to finding and identifying all hidden characters in The Incident at Galley House. Person 12, Person K, and Rupert Galley explained." keywords: ["hidden characters, Person 12, Person K, Rupert Galley, secret characters"] category: "characters" date: "2026-07-15" lastModified: "2026-07-16" image: "/images/hero.webp" video: ""
Hidden Characters — Person 12, Person K, and Rupert Galley
This article covers hidden characters in The Incident at Galley House. The game features a memory machine code-input system where you enter codes in the format Timestamp-Location-Characters to unlock scenes from the past. The progressive hint system provides 3-4 graduated nudges with no penalty. For more information, see the beginner guide, walkthrough, and scene codes.
The 1936 gathering at Galley House brought together eleven guests under mysterious circumstances. As Reya at D&M, you operate the memory machine to investigate what happened. Understanding the characters, locations, and deduction system is essential for solving both the individual fates and the meta-plot.
Key Points
- The code format is Timestamp-Location-Characters (e.g., 01-EN-1-11)
- There are 16 location codes across three floors
- 11 past characters and 8 present characters appear in the story
- 15 achievements include 5 hidden ones
- The meta-plot connects both timelines through D&M and the supernatural
Investigation Tips
When working through this topic, remember these strategies:
- Use the keyword search tool to find connections between scenes
- Listen to voice acting for character identification clues
- Request hints when stuck for more than 15-20 minutes
- Label locations immediately when discovered
- Pay attention to both Part 1 and Part 2 scenes
External Reference
For official information, visit the Steam page and follow @eviltrout on Twitter. See the achievement guide for completionist goals and the Type Help comparison for historical context.