Cornelius Hickey
Background
Cornelius Hickey is a caulker's mate on the HMS Terror in the Discovery Service for the British Royal Navy. He is originally from Ireland.
During the events of The Terror: Season 1 Episode 1 Go for Broke played by Adam Nagaitis
At the crew dinner, William Strong is eating with Hickey, Thomas Evans, Robert Golding, and David Young. Hickey and the others argue what rank the ship's dog, Neptune has. Young starts to cough up blood and Golding calls for a doctor. After he dies, Young's grave is dug by Hickey, Evans and Magnus Manson, while he is buried by Hickey, who is overseen by Sgt. Solomon Tozer. As Young is being buried his coffin opens and Hickey steals his ring. Franklin gives a speech to the crew about how they will soon accomplish their journey. Six days later, both ships are stuck in the ice and the next morning they wake up to be surrounded by continuous ice.
During the events of The Terror: Season 1 Episode 2 Gore played by Adam Nagaitis
Lt. John Irving catches Hickey having sex with William Gibson. Irving orders Hickey to repair Francis Crozier's toilet and when he leaves, Gibson worries that Irving will tell on them, but Hickey doesn't think he will. Neptune barks at Hickey as he is caulking Crozier's toilet and after Hickey threatens to caulk him, Neptune leaves a poop on the floor. Hickey hears Crozier walking nearby and hurriedly picks up the poop, which endears him to Crozier. Crozier and Hickey bond over being Irish and Crozier offers him a drink.
During the events of The Terror: Season 1 Episode 3 The Ladder played by Adam Nagaitis
June, 1847, Hickey sees Gibson ask to speak with Irving. Irving approaches Hickey and Irving accuses Hickey of seducing Gibson. Hickey then confronts Gibson and Gibson breaks off their relationship. Hickey brags that he had a drink with Crozier and Gibson points out, Crozier will drink with anyone. After John Franklin is killed by the Tuunbaq, Crozier gives the speech written by Franklin for Lt. Graham Gore's eulogy, and during the funeral, Hickey defecates on Crozier's bed and reads his resignation letter.