Wiater is voiced by a locally-popular Polish actor Piotr Adamczyk, best known for his portrayal of Pope John Paul II in a 2005 Italian TV miniseries Karol: A Man Who Became Pope and its 2006 sequel, Karol: The Pope, The Man.
Wiater was an officer who aided the ship's Gunner, Christian Wolff. He, alongside Wolff, was responsible for the ship's weaponry and could be seen handing out weapons to the crewmen.
Wiater was first seen witnessing the execution of passenger Hok-Seng Lau, kneeling next to Wolff. He was also seen blocking Edward Spratt and Emil O'Farrell from entering a crime scene in the cargo hold.
After surviving the Kraken attack on the ship, Wiater began to doubt Captain Robert Witterel's trustworthiness. He broached the subject of mutiny with Fourth Mate John Davies, planning to take over the ship and sell the "wretched fish" and shells. Midshipman Thomas Lanke overheard the plans and panicked, shouting "Mutiny!" at the top of his lungs. Wiater stabbed Lanke in the back, but Davies intervened and wrestled Wiater for his gun. During the scuffle, the gun went off and blew off Wiater's face.
A player with an ear for accents might identify Wiater from his spoken lines in Escape, part 4 alone, as he is the only Polish crew member on board. However, even when not able to distinguish a Polish from a Russian accent, the fact that he is the only Slavic officer may allow him to be identified in this scene. Wiater and Wolff can be paired by their uniforms, as they are the only crew members to wear trousers with lampasses (vertical stripes down the outside of the leg). Typical of Slavic languages, Olus's speech noticeably lacks the use of articles, which further hints to his Polish identity.
The game unblurs him after Soldiers of the Sea, part 7, where he can be seen (through the walkway's windows) helping Gunner Christian Wolff (whom the inspector can have identified by this point) hand out weapons to the crew.
Wiater's appearance is distinctive in that he seems to be sporting headgear and facial hair totally inappropriate for an officer of 1802.
- Murder, part 2
- Unholy Captives, part 2
- Unholy Captives, part 4
- Soldiers of the Sea, part 4
- Soldiers of the Sea, part 7
- The Doom, part 6
- The Doom, part 7
- The Doom, part 8
- Escape, part 1
- Escape, part 2
- Escape, part 3
- Escape, part 4
- His corpse can be interacted with in Escape, part 5 and remains visible in Escape, part 6
- The Justice at Sea sketch