Gibbs was a carpenter and assistant of fellow American carpenter, Winston Smith. He was first seen witnessing the execution of passenger Hok-Seng Lau, alongside his boss. He later helped Smith retrieve the body of one of the seamen, William Wasim, who fell down a flight of stairs to his death.
When a crab rider was invading the gun deck, Gibbs ran into the scene to investigate. In an act of foolhardiness, Gibbs threw his axe at the crab rider; it deflected the axe and shot three spikes at Gibbs, impaling him.
The East India Company insurance assessment of the Obra Dinn incident declares his estate unknown, and donates his £30 in outstanding wages to a pension fund.
Gibbs can be identified in Unholy Captives, part 3 where he is seen working alongside Smith in the workshop. In addition, he addresses Smith as boss while attempting to attack the crab rider. If relying on accents, Soldiers of the Sea, part 3 is enough to identify Gibbs, as he speaks with an American accent and there are only two Americans on board. The way he addresses Smith, the only other American on board, makes it clear who's who.
- Murder, part 2
- Unholy Captives, part 3
- Unholy Captives, part 4
- Soldiers of the Sea, part 3
- His body can be interacted with in Soldiers of the Sea, part 4
- The Justice at Sea sketch