A sea captain and stalwart friend of the Stockmann family. Rarely at home due to his occupation, he has little involvement in local government and claims to have no particular political ideas. However, he’s also Dr. Stockmann’s most loyal supporter, standing by him even when it costs him a commission on a ship and emerging as a foil to characters like Hovstad who claim to be driven by strong principles but actually change their beliefs to match fickle public opinion. Captain Horster’s refusal to vote or involve himself in political battles supports Dr. Stockmann’s belief that people without knowledge, whether they come from the upper or lower classes, shouldn’t have a voice in public life.