The hero of the game. Son of Ronyx Kenny and Illia Silvestri, his desire to prove himself on his own merits leads him to get too close to an alien device that teleports him to an uncharted planet. There, he saves one of the local girls with his phaser, and is mistaken for a legendary hero.
All Men Are Perverts: During a PA with Welch in Fun City, Claude can wind up buying what is obviously an adult magazine, admiring the cover girl and her assets, out loud. Welch was not surprised about it.
Badass Normal: He's pretty ordinary, but proves to be deadly with a sword on skill alone.
Gone Horribly Right: Claude's repeated attempts to reach the Calnus with his communicator. By the time they finally got to him, it was the point that Claude didn't want to leave his new friends behind.
Good Old Fisticuffs: Primarily a swordsman, but he also has a couple fist techniques (some of which were also used by Illia).
Hair of Gold, Heart of Gold: Like his mother, Claude is generally friendly and well-meaning, save some early moments of dickishness when Dias is involved.
I Choose to Stay: Halfway through Ell, the Calnus has finally picked up Claude's communicator signal and they forcibly teleport him out of Expel. When Claude finds out from his father about the planet's approaching destruction, he asks to be sent back, but Ronyx uses his authority as admiral to put Claude in his place, believing it to be for Claude's own safety. Claude insists, using an excuse that he wants to say goodbye to his friends. Ronyx relents, but when Claude is sent back to Ell, he intentionally leaves behind his communicator so that they won't be able to track him again.
The Matchmaker: A PA sees Claude becoming one for Leon, who has expressed an interest in all the female party members.
Stepford Smiler: A flashback shows how Claude made himself sound more enthusiastic to be cruising on a starship for the first time than he actually was, even while the other officers tried to use him to put a good word toward his father. Since no one on Expel or Nede knows his father, he can be himself.
The heroine of the game. A cheerful young woman from the village of Arlia on the underdeveloped planet, Expel. She possesses healing powers previously unknown to her world. One day, while visiting the nearby forest, she is attacked by a monster and rescued by a man wearing strange clothes and wielding a weapon that shoots a ray of light.
Combat Medic: The main healer, but she's still good with her fists and light magic.
Witch Species: As a Nedian, she doesn't need to tattoo herself to use symbology, particularly the healing spells that are completely alien to Expel.
Zettai Ryouiki: Rena started the trend of doing this with Star Ocean's female leads.
A treasure hunting symbologist from the town of Marze. Claude and Rena run into her in the city of Krosse, arguing with another symbologist over a treasure map. She talks them into joining her on an expedition to a nearby cavern.
Gadgeteer Genius: She has developed robotic technology alongside her father on a planet with technology roughly that of 17th century Earth. In the encyclopedia in the third game, it's heavily implied that technology she developed modernized Expel and along with an abundance of Energy Stone, made Expel a dominant player in galactic politics.
Optional Party Member: Joins the party at a certain point if Precis is not already a member, but can still be turned down.
A noblewoman from one of the artificial moons orbiting the dead planet Tetregenesis. She is searching for her lover, Ernest Raviede, who had travelled to Expel on one of his expeditions, and ends up crashing.
Badass Princess: Opera is the heir to the house that rules her entire species.
Celibate Hero: To a certain extent. Despite having women fall over him left and right (including more than one of the female party members), Ernest is far less interested in romance than he is in adventure and research. When Rena asks him why he doesn't return Opera's affections, Ernest replies that he isn't even certain about his own feelings.
Chick Magnet: In addition to gaining the affections of both Vectra sisters, Celine's starting romance rating for him is almost as high as Opera's. In a new Private Action added to the PSP version, he and Dias get ogled by a bunch of female passerby in North City. You can also have Rena gush over them, too.
Joke Character: Ernest has a long animation time on his normal attacks, and he lacks both the raw offence of Claude or Ashton and the powerful multi-hit killer moves of Opera or Chisato. However, some will get him anyway because you can steal a Disc One Nuke from his at two points.note Specifically, the Battle Armor, an armor with 500 defense, which is tied with the best armor in the Bonus Dungeon and nearly 200 points better than every armor before then. He does have a few good Killer Moves, notably Broken Heart, that can help him avoid the bottom tiers.
A prodigy working with his parents in the Kingdom of Lacuer's weapon research division. Claude and Rena are enlisted to help him find the final component of the weapon that will beat back the monsters spawned by the Sorcery Globe.
Badass Bookworm: Leon is a pretty powerful mage, plus his weapon is a book.
Joke Character: Noel could be a joke character, considering he comes with spells that do less damage than those of Celine and Leon by that point, and heal less HP than Rena. The game actually lampshades his uselessness if you can get a character to randomly paint his portrait, whose flavor text describes him as having "puny muscles... hope that's okay". Add to that the fact he considers "I don't like fighting, you know!" to be a taunt. With that said, use of Bloody Armor can allow him to heal with no chance of getting damaged.
Master of None: Noel can heal, but can't even come close to matching Rena. He can use attack magic, but Celine and Leon have him beat there. He equips knuckles as his Weapon of Choice, but all of the fighters beat him in physical combat, as does Rena.
Otaku: In the PSP version, you can go to a "fanfic" (doujinshi) sale in Fun City. In one Private Action, Welch will drag Claude there forcibly. And she is very...ahem...familiar with the various genres.
One of the three Wise Men who guard the entrance to Fineal. An elderly man with a third eye (maybe one eye, he has a visor that make it hard to tell) who seems to know much if you ask him about anything.