Preserved Killick
From WikiPOBia
Preserved Killick serves as Jack Aubrey's steward throughout the Aubrey-Maturin series. He is described in the Canon as ill-tempered, disagreeable, and "shrewish." Killick regularly scolds and nags both Aubrey and Maturin about their mistreatment of their clothing, and he often eavesdrops on their private conversations. Killick often audibly mutters ill-mannered comments toward Aubrey and Maturin, and they most often overlook Killick's disrespectful tone. Killick is the only member of any of Aubrey's crews, including the officers, who is afforded this wide amount of latitude when addressing the Captain.
In spite of his shortcomings, Killick is fiercely loyal to Aubrey, and he is a valued member of Aubrey's crew. Aubrey reciprocates this loyalty, as Killick is one of a handful of crewmen who Aubrey repeatedly takes with him from one command to the next. Killick also stays on as a servant at Aubrey's home when he is without a command.