Primary Characters
Thalassa Gilou
Tal Monteblanc

Secondary Characters
Thalassa Nephos Caliga
Thalassa Partasah
Thalassa Zefonith

Tethyns
Anthemys Monteblanc
Balak
Euphausia Elaas Glory
Far Sight (Clipper)
H. Javin Aubergine
Haj Gellen
Jaeth Delrio
Jendolyn Basaday
Lightfoot (Twinkletoes)
Morisha Tholne
River Rhodes
Suze
Swift
Tangle
Twomoon (Jewel)
Security
Plutonia's Crew
Other Entomorphs

Offworlders
Alortan Bathurst
Iahutta the Flock
Perius Monteblanc
Tallifens Monteblanc

Mentioned Only
Thalassa Alu
Rejene Ri'el
Tannic Bituah
Jethin Basaday
The Ukariel Family

One-Shots
Anfre Sofi
Captain Ekkapi
Grigery
Jille Stelton
Mai
Peachblossom
Rinjin Halik