Character name origins:
- "Kaiko" Means "Ocean trench" in Japanese and is the name a Japanese remote-operated underwater vehicle.
- Antaeus was, in Greek mythology, the half-giant son of Poseidon and Gaia.
- Fontaine is the middle name of famous oceanographer Matthew Fontaine Maury.
- Nereus was, In Greek mythology, the eldest son of Pontus and Gaia who fathered the Nereides.
- Proteus was, in Greek mythology, an earliest god of the sea.
The Nektons' submarine is named after Pierre Aronnax, a character from Jules Verne's Novel "20 000 Leagues Under the Sea".