Magnetic Hero: By necessity, with 107 potential recruits on offer.
Almighty Janitor: By the time of Suikoden Tactics, he acts as a random agent for Lino, who doesn't even bother to personally order him to join the new heroes. Lazlo, by that point, can freely destroy entire fleets with his True Rune. What nobody (including Lazlo) realizes is that by birthright he should be the crown prince.
A Taste of Power: Inverted: He wears the outfit of the Razril Knights at the beginning of the game, including their single-sword style. When he ditches the uniform for plot reasons and takes up his second sword, his attack power effectively doubles.
Blessed with Suck: The Rune of Punishment. Not only does it have the normal baggage of one of the True Runes, it actively drains the life of its bearer whenever they use it. Unless it successfully transitions to the Forgiveness phase. Lazlo is apparently the first bearer in a very long time to survive to see that transition.
Heroic Mime: Interestingly, though, the player can select one of two voice sets for him, or go completely without one. As is typical of the Suikoden series, the main character does have (text-only) dialogue, but it comes entirely in the form of menu options for the player. Suikoden heroes tend to only talk when there's something important to say, apparently.
Moses in the Bullrushes: He was washed up on Razril's shore as an orphaned toddler. The Vingerhut family took him in as an adopted servant and playmate for their son, Snowe.
Happily Adopted: The pair enrolled in the Gaien Marine Knights Academy together, where his dedication to hard work caught the eye of Commander Glen.
Power Strain Blackout: He faints after each use of the Rune of Punishment, due to it draining its host's lifeforce with each use, until it finally kills them. This can be averted by successfully recruiting all 108 Stars of Destiny.
Secret Legacy: He's actually the lost Prince of Obel, who was lost to sea at the same time the Queen of Obel sacrificed herself. Ironically, the King of Obel later considers naming Lazlo as his successor, despite not realizing his true identity.
The Stoic: Not very expressive, particularly when compared to other Tenkai Stars.
The Scapegoat: Kooluk sets him up as one after he strikes a deal with them to save Razril, by giving him a special position that conveniently takes him away from Razril so that he doesn't see its decline firsthand.
Well-Intentioned Extremist: He really does want to serve and protect Razril, even if it means making a deal with the Kooluk Empire so they don't have to go to war. When these efforts aren't appreciated and he's driven out of harbor, he snaps and decides to take a cue from Lazlo, turning to piracy.
Generation Xerox: Resembles her mother so closely that the elves of Na-Nal were immediately able to recognize her as Romina's daughter, and bar her from their village because she now shared her mother's crimes. The exact nature of those crimes never being specified, but given the nature of the Na-Nal elves, probably amounting to nothing more than "not being a Jerk Ass to the humans."
Nice Guy: He's a chilled out, friendly guy to have around.
Blackmail: After Gaien scaled back their naval funding and left Razril to fend for itself, Vincent Vingerhut took advantage of this to start blackmailing the knights — either do as he asked, or he'd withdraw his financal support. Glen resents this arrangement, but can't bring himself to act against Vincent's wishes.
Heroic Sacrifice: Uses the Rune of Punishment to wipe out most of the forces attacking Razril, trading his life for that power.
Nice Job Breaking It, Hero: Despite not feeling Snowe was ready to graduate, let alone act as a leader, Glen complied with Vincent's wishes and kept putting Snowe in positions above what he was ready for. When Snowe screws up, he then slaps him around, contributing to Snowe's confusion and resentment of Lazlo.
Lawful Stupid: Though she had a good working relationship with Lazlo, she automatically believed that Lazlo killed Glen despite the evidence resting on an extremely suspicious testimony by Snowe, with whom she a poor working relationship with. Even when confronted with Snowe's lack of leadership capabilities and being horribly tortured and later being saved by Lazlo's crew, she remains staunchly believing in his guilt. It's only after she sees the Rune of Punishment that she finally believes in Lazlo and joins him. But how this trope really sticks is her Confessional after joining the 108 Stars of Destiny. She reveals that she never believed Lazlo murdered Glen but that she was so adamant about blaming somebody that she was willing to delude herself into believing in his guilt when she knew he didn't do it.
The Oldest Tricks In The Book: She runs a hustle with Reinhold, tricking innocent warriors into dueling her, by making them believe she has just beaten Reinhold up. She then challenges the unwitting warrior to a duel, with the hopes of beating them for a 10,000 potch reward.
Heartbroken Bad Ass: His wife, the Queen of Obel, was bearer of the Rune of Punishment, but it eventually consumed her when she tried to use the rune to protect Obel from pirates. His son was also lost at sea. The son later turns out to be the hero himself! Neither of them ever realizes it, though. Ironically, in Suikoden Tactics, Lino expresses interest in adopting Lazlo and designating him as his heir.
Furo Scene: His speciality. He has a passion for making baths, and once recruited, he builds a large onsen on the ship HQ, where party characters can be seen enjoying a nice soak. The onsen also serves as an area to display a mural of all islands visted and any treasures found.
Bathtub Bonding: Certain combinations of characters and antiques placed within the baths will activate a variety of mini scenes.
Naked on Arrival: He joins the allies after the hero retrieves his misplaced clothes whilst he is having a (naked) soak in a mountain spring on the Deserted Island.
No Social Skills: Gau was unable to communicate and didn't cope well with other people once he encountered them. He later learned to speak some simple sentences and conduct elementary conversations. See Wild Man.
May-December Romance: She clearly has a fondness for older men (and mustaches), as when she decides to rank the most attractive men on the boat, Gunter took bronze, Konrad took silver, and Izak took the gold.
Cloud Cuckoo Lander: He has the tendency of thinking that he is instantly great friends with someone and he has these friends everywhere.
Continuity Nod: To Suikoden 1, where Viktor uses the fake name "Schtolteheim Reinbach III" while going through the Fortress of Kwaba. Tir also can adopt "Schtolteheim Reinbach IV".
Running Gag: He is actually the living embodiment of Suikoden's Running Gag. In 2, Riou suggests this name as Flik's fake name. In 3, Chris can adapt this fake name (despite being a woman). Here? The man himself appears in person.
Fetch Quest: The hero must bring him his beloved Rose Crest for him to join the allies.
Ghost Ship: He is encountered initially in disguise, aboard the mysterious Fog Ship. He and the hero battle the evil Fog Ship Guide, after it tries to steal the Rune of Punishment. He takes the Soul Eater back from it and accompanies the hero thereafter.
I Just Want to Be Normal: He even gives up the Soul Eater to the Fog Ship Guide in an effort to accomplish it, but later takes it back.
Heel-Face Turn: He initially rejects the hero's request to join him, stating that he is happy with the Kooluk's presence on Na-Nal, even branding the hero "rude". However, after Kooluk's betrayal, he is sent by his father to help the hero fight them.
Runaway Bride: She's less than happy with this arrangement and runs away to Na-Nal. Luckily, Reinbach has no intention of going through with it and straightens things out when they finally meet, just as she is about to be dragged back to Middleport by his father's goons.
Heel-Face Turn: He orginally fought for Kooluk and led the assault and takeover of Razril, although he is uncomfortable with this. The hero eventually makes him see sense, and when Razril was liberated, he joins the allies.
Summon Magic: His greatest power. He summoned a number of creatures from the World of Emptiness, most notably the Giant Tree and the Eye Fish. The seeds from the Giant Tree became the ammunition for the rune cannons, and the eyes of the eye fish became a component of the muzzle.
Auction of Evil: He then sold this technology and the Giant Tree to the highest bidder.
My God, What Have I Done?: He eventually grew depressed, ashamed of the destructive power of his invention, which he hadn't dreamed of when making it.
The Atoner: He joins the hero to destroy his creations and make amends. Sometime before Tactics, he is summarily executed by a lynch mob.
An Interior Designer Is You: Her speciality. She is a famous interior designer and once recruited, a special room onboard the ship HQ can be decorated with various pieces the hero acquires.
Authors: She has published her own book on interiors.
Right Woman In The Wrong Place: She and Gary were just passing through Obel in search of the perfect place to settle down, when it was attacked by the Kooluk. They bravely supported the Obel people and joined hero's team once Obel was liberated.
Continuity Nod: He and Ema are suspiciously similar looking to Maximillian and Sancho from Suikoden 1.
Many years down the road, there would be a group of knights of which one (and a partner) would always join the Hero in each game, all of whom share this exact trait, word for word. The amulet he wears is also suspiciously similar to their insignia. See Continuity Nod above.
Right Man in the Wrong Place: He and Ema were just passing through Obel in search of the perfect place to settle down, when it was attacked by the Kooluk. They bravely supported the Obel people and joined hero's team once Obel was liberated.
The Eeyore: He's a pretty miserable, angsty kind of guy and is prone to long periods of depression.
Gotta Catch 'Em All: Recruiting him is an arduous process. The player must travel right through the Obel Ruins to find him. When finally encountered, he asks the hero if he has an Escape Talisman and asks him to prove it by using it. This (irritatingly) warps the hero right to the start of the Obel Ruins, which must be navigated again to finally recruit him.
Amulet of Concentrated Awesome: She is the keeper of the Gate Rune, a True Rune that has the power to open portals to other worlds and dimensions. It was split in two following an attack on her village of the Gate Rune Clan by Harmonia. She kept the back half, Windy kept the front half.
Blind Seer: Her role is to provide astrological projections.
Artifact of Doom: Years previously, under unknown circumstances, he had come in contact with the Rune of Punishment, becoming its bearer.
Life or Limb Decision: Unable to control the rune, he eventually decided to cut off his own arm in desperation, freeing himself from the rune's curse.
Survivor Guilt: The Rune's power transferred to his son, who used the rune to stop Scarlet Moon nobles attacking the village where the Cray family lived, killing not only the nobles but a large number of villagers, as well as himself. Cray endlessly seeks the rune, as it was the only thing left in his life which contained some essence of his son.