Twenty Thousand Leagues Under the Sea characters

Also known as Professor Aronnax

Appears from the start

A French naturalist and museum professor who is asked to advise an international effort to identify a mysterious object reported at sea. Scholarly, observant, and eager to encounter unknown marine life, he narrates the voyage and is often torn between scientific opportunity and personal freedom.

First appears in chapter 3

Aronnax's young Flemish servant and devoted traveling companion. He is calm in emergencies, formally polite, and so practiced in natural classification that he can place almost any specimen within a scientific system, even when he cannot identify it by ordinary name.

First appears in chapter 3

The commander of the United States frigate Abraham Lincoln, charged with finding and destroying the dangerous object blamed for damaging ships. He conducts a long and determined search across the Pacific.

Also known as The Canadian

First appears in chapter 4

A Canadian harpooner aboard the Abraham Lincoln, renowned for his strength, eyesight, and skill against whales. Direct, independent, and distrustful of confinement, he becomes Aronnax's companion in the hunt for the supposed sea creature.

Also known as Captain Nemo

First appears in chapter 10

The commander of the Nautilus, a submarine of his own design. A formidable engineer, navigator, and scholar, he has rejected ordinary national society and refuses to explain his origins. He offers Aronnax access to the oceans and his collections while making clear that those who learn his secret cannot simply leave.

First appears in chapter 14

Nemo's unnamed senior officer aboard the Nautilus. He shares the captain's private language and helps direct navigation and observations, representing the disciplined crew whose past remains as guarded as Nemo's.

First appears in chapter 23

An unnamed member of the Nautilus's crew who is gravely injured while carrying out his duties. Nemo brings Aronnax to examine him, revealing the strong loyalty that binds the otherwise secretive submarine community.

First appears in chapter 27

An unnamed man gathering pearl oysters in dangerous waters to support himself. He does not know that observers from the Nautilus are nearby as he dives alone and attracts a shark.