- NOTE: The game includes a good deal of characters from Suikoden IV, but the characters presented here exclusively appear in Suikoden Tactics.
All spoilers are unmarked.
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Voiced by: Romi Paku (JP) and Mona Marshall (EN)
- Blade on a Stick: He wields a swallow, a double-bladed sword, named Noble Fury.
- But Now I Must Go: He eventually leaves on a journey without his friends after the story ends later on in his life.
- Combination Attack: Kyril can participate in the "Double Leader Attack" (with Lazlo), the "Dying Wish Attack" (with Seneca and Andarc) and the "Ice Crush Attack" (with Corselia).
- Demihuman: The events at the end of the game reveal that Yohn, Walter's demi-human companion, is Kyril's mother, and his brave actions in defeating Iskas open a portal that allow her (and a revived Walter) to return to her world.
- Dramatic Irony: Late in the game, Kyril kills a fishman to defend Corselia, finally overcoming the mental block that's prevented him from doing so in the past, only to realize he just slew her father, mirroring the trauma that caused said mental block in the first place.
- For Great Justice: He has a very strong inclination to help others in need.
- The Hero: He is the main character in the game. Unlike in the previous Suikoden games, the player does not choose a name for the hero.
- He's Back: Kyril returns to the Island Nations, three years after his father death, and resume his quest to destroy the Rune Cannons.
- Heroic BSoD: His father sudden death leaves Kyril numb with shock and he is unable to fight properly. Gameplay wise, his special attacks must be re-learnt and he is unable to fully kill fish monster enemies. This state lasts until the chapters of the game set 2 years after Suikoden IV, when Kyril is 5 years older.
- Heroic Mime: Averted. Unlike most Suikoden protagonists, he actually talks.
- Immortality Begins at 20: In the epilogue, Andarc notes that Kyril stopped ageing after returning from the World of Emptiness, probably because of his mother's genes.
- Magnetic Hero: As is typical of Suikoden heroes, Kyril inspires people to help his cause.
- Playing with Fire: His innate element is fire.
- Red Is Heroic: Kryil wears a red outfit and his innate element is fire.
- Taste of Power: Downplayed. In the prologue Kyril isn't much stronger than the other fighters, but he starts with every Swallow Rune skill learned. After his father's death, his grief is presented as him having to re-learn them all.
- Troubled Backstory Flashback: Kyril's backstory is laid out in the first few chapters of the game, which are set when he is around 13.
- Took a Level in Badass: Despite forgetting his shallow skills, Kyril returns more serious and mature after the time-skip.
- Why Did It Have to Be Snakes?: Due to his trauma, Kyril cannot finish-off fishmen enemies. He ultimately overcome his fear and saves Corselia from one.
- "Well Done, Son!" Guy: As a young boy, he traveled with his father, learning how to fight, becoming very proficient at a very young age.
- You Killed My Father: His father, Walter, was turned into a fish monster by the pirate Steele's deadly Rune Cannon. He rushes to help his father, but the now hostile Walter is necessarily killed by Andarc to save Kyril's life.
Voiced by: Hidenobu Kiuchi (JP) and Steve Staley (EN)
- Big Brother Mentor: To Kyril, especially after the death of Walter.
- Badass Bookworm: A typically geeky looking guy who nonetheless unleashes his magical powers in defence of his friends.
- Color-Coded Wizardry: His clothes are partially purple, his element is lightning and so is his starting Rune.
- Combination Attack: He can perform the "Cohort Attack" (with Seneca), the Dying Wish Attack (with Seneca and Kyril) and the Adonis Attack (with Coop and Roget).
- Magic Staff: He wields the Axe Rod.
- Narrator All Along: What he turns out to be. In fact, the context of the story chronicles the events that took place within his novel "The Fall of Kooluk", which he wrote afterwards.
- Oblivious to Love: Has no idea that Seneca has a crush on him.
- Secret Diary: He gets very upset if this is made fun of.
- Shock and Awe: He specializes in Lightning rune magic.
- The Smart Guy: The intellectual magic user of Walter's group.
- Smart People Wear Glasses
- Squishy Wizard: Like most magic users, his health is comparatively low.
- Survivor Guilt: He feels unbelievably guilty about having to kill Walter to save Kyril, even though Kyril forgives him, and therefore Apologises a Lot.
- Will They or Won't They?: He's very close to Seneca, but any romantic thoughts remain unvoiced. They may well have gotten together at the end of the game, but if they did, it's never mentioned.
Voiced by: Mitsuki Saiga (JP) and Wendee Lee (EN)
- Automatic Crossbows: Fights with one.
- Blow You Away: Her default elemental affinity is wind.
- The Chick: Of Walter's group.
- Closer to Earth: She's very sensible and levelheaded, especially compared to worrisome Andarc.
- Combat Stilettos: Wears long black high-heeled boots. It doesn't affect her skills though, as she's an archer.
- Combination Attack: She can perform the "Cohort Attack" (with Andarc), the Dying Wish Attack (with Kyril and Andarc) and the "Barrage Attack" (with Flare and Frederica).
- Cool Big Sis: Discussed. Seneca sees herself as one to Kyril when he asks her and Andarc about his mother.
- Ms. Exposition: Seneca's main role outside of battle is to gather information, the facts she gathers usually indicating how the team should progress.
- Parental Substitute: Kyril sees her as a mother-figure, although she isn't too happy about it and prefers to be seen as a Cool Big Sis.
- She's Got Legs: Her dress has large splits up both sides, showing off her legs.
- True Blue Femininity: Wears a long blue dress.
- Will They or Won't They?: She's very close to Andarc, but any romantic thoughts remain unvoiced. They may well have gotten together in the end, but if they did, it's never mentioned.
Voiced by: Shinji Kawada (JP) and Michael McConnohie (EN)
- Ascend to a Higher Plane of Existence: Following Iskas's destruction, he tells Kyril the truth about his existence, and asks him to come with him into Yohn's world. Kyril refuses, and so he and Yohn disappear into her world together alone, at peace.
- Decoy Protagonist: Walter starts the game as The Leader of the group but, during the battle with Steele, he is turned into a fish monster and has to be necessarily killed by Andarc to protect Kyril.
- Dishing Out Dirt: His innate element is earth.
- The Engineer: He is a particularly talented engineer and an expert on Rune Cannons.
- The Fettered: He believes in responsibility, honor, and justice.
- Interface Spoiler: Aside from his son being placed on the center of the game's cover, Walter's character profile isn't even on this game's Official Japanese Site.
- Also, his sword (which is at Level 2) cannot be upgraded at the Middleport blacksmith.
- Interspecies Romance: Demi-human Yohn is actually Kyril's mother and Walter's long-standing partner.
- Painful Transformation: He is necessarily killed by Andarc to protect Kyril, having been transformed into a raging fish monster by the pirate Steele's Rune Cannon.
- The Power of Love: He is looking to research Rune Cannons to help his partner Yohn find a way back to her world.
- Secret Identity: It turns out that he is actually a spy from the Scarlet Moon Empire.
- Taste of Power: Downplayed. Walter starts at the same level as the other party members and his weapon cannot be upgrated past Lv 2, but his attack power is much stronger.
- Team Dad: He is Kyril's father and leads the initial group, consisting of himself, Kyril, Seneca, Andarc and the mysterious Yohn.
- Beast Man: Yohn is a mute half-goat woman.
- Bizarre Alien Senses: Yohn can fell the presence of nearby Rune Cannons.
- Dead Person Conversation: Yohn can listen to the souls of recently departed people.
- Demihuman: She is a mysterious half-goat, half-human.
- Horned Humanoid: She has goat-like horns and cloven hooves.
- Interspecies Romance: She is actually Kyril's mother and Walter's long-standing partner.
- It Was with You All Along: Yohn is revealed to be Kyril's mother all along.
- Mystical White Hair: Yohn's white hair makes her stands out, as she is from another world.
- Mysterious Past: This unravels towards the end of the game. It is revealed she was summoned from the World of Emptiness, the same world where the Giant Tree (the source of all rune cannon ammunition) came from. She was stuck in the world, unable to communicate outside of her home.
- The Speechless: She doesn't say a word, until after the final battle.
- Talking to the Dead: Despite being mute, she has the unique ability to communicate with the souls of the recently departed, a valuable trait for investigating the mysteries of the Rune Cannons.
- True Blue Femininity: Wears a traditional blue dress with voluminous lacy sleeves.
The Kooluk Imperial Family
Voiced by: Akane Oomae (JP) and Stephanie Sheh (EN)
- Break the Cutie: She loses both her father and grandfather to Iskas's Evil Eye, and then he murders her mother, Miranda, right in front of her before the final showdown.
- Color-Coded Wizardry: Wears cyan clothes and is associated with the water element.
- Combination Attack: Has the "Ice Crush Attack" (with Kyril), the "Nymph Attack" (with Millay and Rita) and the "Princess Attack" (with Flare).
- Distressed Damsel: Downplayed. Kyril has to rescues her from marauding fish-people at the Caleron Laboratory, but she also helps them in battle.
- Magic Staff: Wields the Flake Rod.
- Magical Girl Warrior: A very young girl (no more than 11) who specialises in water magic.
- Making a Splash: She specialises in Water Rune magic.
- Plucky Girl: Despite the horrific circumstances she finds herself in, she maintains an admirably defiant spirit.
- Rebellious Princess: She goes on the run from her family, having witnessed Iskas seducing her mother Miranda away, and trying to kidnap her. Her family were all still unaware of Iskas's trickery and blame Kyril for kidnapping her.
- Wise Beyond Their Years: Exhibits a pragmatic, mature approach to the tasks she and her friends must face.
- The Dark Times: Julius reigns during age known for corruption, crop failure, and foreign pressure.
- The Emperor: Of the Kooluk Empire.
- Painful Transformation: Iskas uses the Evil Eye to turn him into a fish monster. The transformation exhausted Julius, who died shortly afterwards.
- The Pirates Who Don't Do Anything: Julius has little involvement in the running of his Empire, leaving the job to the two power-competing factions and his family members.
- We Hardly Knew Ye: Justified. When the party meets him, Julius has already been turned into a fish monster by Iskas and dies shortly after due to the exhaustion.
- Badass Beard: Has a big beard.
- Badass Cape: Wears a red cape and is as well known warrior and next in the line for succession of the Kooluk throne.
- Badass Family: Busk, Ornela and himself are siblings.
- Big Guy: Of the Imperial siblings.
- Blood Knight: He's said to be particularly brutal in battle.
- Fish People: He is turned into a fish monster by the Evil Eye.
- HeelFace Door-Slam: After Iskas's treachery is exposed by Corselia, Martin marches to Graska to confront him, but is caught in a trap and turned into a fish monster, which Kyril has to kill to save Corselia.
- Horrible Judge of Character: He is easily manipulated by Iskas into believing that Kyril kidnapped his daughter, Corselia, and is unaware that Iskas and his wife, Miranda, are having an affair.
- Married to the Job: He's usually away at battle, which leaves his wife lonely, and gives opportunity for Iskas, the leader of the Patriarchal Faction, to seduce her.
- Papa Wolf: To his daughter and heir, Corselia.
- Playing with Fire: His innate element is fire.
- Plotline Death: He is necessarily killed by Kyril when he attacks his own daughter, Corselia, having been turned into a mindless fish monster by the Evil Eye.
- Power Up Mount: Martin rides a Kangacorn in battles.
- Rated M for Manly: He's a great big polar-bear of a man.
- Recurring Boss: Downplayed. Martin is fought three times during the game, but only the first time is a normal battle; in the second encounter, you are told to defeat everyone but him and the third time is a Duel Boss.
- Stout Strength: He's a little on the chubby side.
- You Go, Girl!: As he dies, Yohn relays that Martin urges his young heir Corselia to do what she felt was right regarding the fate of the Empire.
- Absence Makes the Heart Go Yonder: Her husband Martin's constant absence increasingly frustrated her, and so she began an affair with Iskas.
- Dull Eyes of Unhappiness: Unsurprisingly.
- Extreme Doormat: Miranda is totally submissive, which is exploited by Iskas. Only much later, when Iskas threats Corselia, does she decide to stand up against him.
- Horrible Judge of Character: She is easily seduced and manipulated by Iskas into going along with his plans.
- Mama Bear: She is finally pushed to the limit when Iskas threatens her daughter's life, and attempts to stab him when he violently threatens Corselia.
- Redemption Equals Death: During the final battle, Miranda stabs Iskas with a knife, but she is immediately killed by him in retribution.
- Missing Mom: To Corselia, whilst she is in Iskas's thrall.
- Weak-Willed: Her revulsion at Iskas's plans clashed with her feelings for him as well as her own weak-willed nature.
- Your Cheating Heart: Miranda became frustrated by Martin's lack of attention, as he was too busy with military matters, and began an affair with Iskas, eventually becoming his lover.
- Badass Family: Martin, Ornela and himself are siblings.
- Blade on a Stick: He wields the Golden Spear.
- BrotherSister Team: He and his older sister Ornela often fight alongside one another.
- Combination Attack: Performs the "Sibling Attack" alongside Ornela.
- HeelFace Turn: After Martin is killed and Iskas's treachery is exposed, he and Ornela join forces with Kyril and Lino En Kuldes to stop him.
- Hot-Blooded: He's far less level-headed than his calm older sister.
- Playing with Fire: His innate element is fire.
- Power Up Mount: Busk can ride a Kangacorn. It boots his attack power, speed and increase his movement range.
- Badass Family: Martin, Busk and herself are siblings.
- BrotherSister Team: She and her younger brother Busk often fight alongside one another.
- Closer to Earth: She is very cool, calm and level-headed, especially compared to her fiery older brother Martin and stubborn younger brother Busk.
- Cool Aunt: She is Corselia's aunt, and as well as being very cool, calm and collected, she's also very protective of her young niece.
- Combination Attack: Has the "Sibling Attack" with Busk.
- HeelFace Turn: Alongside Busk.
- Jousting Lance: Her weapon of choice.
- Lady of War: An elegant, older female character — she's essentially a lady-jouster in terms of appearance.
- Shock and Awe: Her innate element is lightning.
- Shoulders of Doom: She wears huge shoulder guards.
- The Stoic: Never once loses her shit, despite the traumas her family faces.
This is merely a list of returning characters from the previous game; information on them is located on the ''Suikoden IV'' page.
¹: Temporarily playable
²: Requires a Clear Data from Suikoden IV
³: Non Playable Character
- A: Adrienne³, Akaghi, Ameria, Axel
- B: Brandeau¹
- C: Carrie, Cedric, Champo, Charlemagne, Chiepoo³
- D: Dario
- E: Ema, Eugene
- F: Flare, Frederica
- G: Gary, Gretchen
- H: Hervey
- J: Jeane, Jeremy, Jewel
- K: Karl, Katarina, Kate, Keneth, Kika
- L: Lazlo en Kuldes², Lino En Kuldes
- M: Maxine, Millay, Mitsuba, Mizuki
- N: Nalkul, Nalleo, Noah
- P: Pablo, Paula, Peck¹
- R: Rachel, Reinbach II³, Reinbach III, Reinhold, Rene, Rita
- S: Selma, Setsu³, Sigurd, Snowe
- T: Tal, Trishtan
- W: Wendel
- Y: Yu
¹: Temporarily playable
²: Requires a Clear Data from Suikoden IV
³: Non Playable Character
- Badass Cape: Wears a black cape with a red design on it.
- Battle Couple: He is Kika's lover, and she always makes him promise to return to her after he sets out on adventures.
- Blood Brothers: With fellow pirate, Brandeau.
- Guest-Star Party Member: He is only playable during Chapter 3.
- Heroic Sacrifice: He is killed by Steele's Rune of Punishment whilst protecting Walter's group in the early chapters of the game.
- Pirate: Of the dashing, romantic hero type.
- Playing with Fire: His innate element is fire.
- The Promise: In death, he keeps his promise when Brandeau transports his coffin back to Kika so she can say one final goodbye.
- Red Oni, Blue Oni: He's the red oni to Brandeau's blue.
- The Rival: To the dread pirate Steele.
Voiced by: Hitomi Hirose (JP)
- Adventure Guild: Her specialty. She runs the Middleport Quest Guild, where players can take part in a huge variety of missions, ranging from simple fetch and carry affairs, all the way up to multi-leveled, epic battle maps.
- Bare-Fisted Monk: She isn't a monk, but still fights with a "Cat Fist".
- Curtains Match the Window: Both her hair and eyes are teal green.
- Girlish Pigtails: She is a young girl and has pigtails.
- Kamehame Hadoken: Her special rune attack.
- Little Miss Badass: She's among the best fighters in the game, once levelled up. Her only actual weakness is that she can't participate in any Combination Attacks.
- Making a Splash: Her innate element is water.
- Purposely Overpowered: Lalacle is one of the strongest fighters in the game, due to her high attack power, counter skills, high magic resistance and evasion; also, she cannot be permanently killed, due to being necessary in the Quest Guild. However, she is only available after you beat the game once.
- Screw the Rules, I Have Green Hair!: Her hair is teal.
- Secret Character: She is only playable once the game is completed all the way through once, and the player opts to start a New Game+.
- Waif-Fu: She is an expert in martial arts, despite being very petite.
- Young Entrepreneur: She's very young, yet still runs the game's Quest Guild.
Nohl and Ralph
Voiced by (Nohl): Yuko Kaida (JP)
- Infant Immortality: Averted as both are killed during the game. Ralph is killed by his Bad Boss and Nohl was turned into a fish monster by Iskas's rune cannon and killed afterwards.
- Fish People: Nohl is turned into a fishmen and killed by the party at the Caleron Laboratory.
- Power Up Mount: Nohl leaves Ralph's pet Kangacorn in Kyril's care.
- Too Good for This Sinful Earth
- Trauma Conga Line: The duo just wanted a job. They are hired by a Bad Boss, which got Ralph killed due to a work accident. Nohl is saved by Kyril and receives a job offer from a witness of the incident, but not too long after that, we learn that the job was to be a guinea pig for Iskas's Rune Cannons.
- We Hardly Knew Ye: The duo are killed shortly after their introduction. Ralph has it even worse, since he dies before the party come to the rescue.
Voiced by: Noki Saitou (JP)
- BFS: He wields a huge broadsword.
- Combination Attack: Coop can perform the "Adonis Attack" with Andarc and Roget.
- Just Following Orders: He was sent by the Scarlet Moon Empire, along with Heinz, to investigate Rune Cannons, and try to retrieve them. A goal which he did not personally agree with.
- Nice Guy: He is much more friendly than Heinz.
- Number Two: He is Heinz's second in command.
- Old Friend: Of Andarc's.
- This Is Unforgivable!: He finally puts his foot down when the corrupt Heinz plans to kidnap Corselia for Scarlet Moon's gain. He parts company with Heinz completely and stays with Kyril, agreeing that the Rune Cannons and the Evil Eye should be destroyed.
- Dropped a Bridge on Him: For all his goals and schemes, Heinz is unceremoniously killed as soon as he leaves the party.
- Jerkass: Refers to Yohn as "Walter's pet" and plots to kidnap Corselia as soon as he learns that she's royalty, even though he and Coop were only ordered to investigate (and if possible, retrieve) Rune Cannons.
- My Country, Right or Wrong: Heinz ia determined to take the Rune Cannons back to the Scarlet Moon Empire, even attempting to use Corselia as leverage. He's stopped by Coop and he and Kyril's group part ways.
- Non-Action Guy: Implied, as Heinz cannot be used in battles and is killed off by some Kooluk soldiers just a few moments after leaving the party.
- Old Friend: Of Walter's.
- Teeth-Clenched Teamwork: He joins with Kyril's group to research Rune Cannons, having been sent to Kooluk under orders from the Scarlet Moon Empire.
- Plotline Death: After being abandoned by Coop and Kyril's team, he was surrounded by officers of the Patriarchal Faction and murdered.
- The Archmage: Despite his youthful appearance, he's is an extremely powerful sorcerer.
- Badass Pacifist: He refuses the call to fight in the Kooluk Army and his house is surrounded by soldiers — luckily Kyril's party is on hand to rescue him.
- Bishounen: A beautiful, seemingly young man with flowing flaxen hair and huge lavender-coloured eyes.
- Combination Attack: Simeon can perform the "Fierce Wind Fangs Attack" (with Pablo), the "Thunder God Attack (with Maxine) and the "Sorcerer Attack" (with Jeane, Maxine and Roget).
- Distressed Dude: Downplayed. Simeon, a powerful sorcerer, refuses to cooperate with the Kooluk soldiers and is surrounded by them, so Kyril and co. has to help him.
- Fantastic Science: Given an Alger Doll and a Wizened Arm, he is finally able to conduct an experiment that reveals the true nature of the Evil Eyes. They create a temporary portal to the World of Emptiness, in which humans cannot exist, and are thus turned into fish monsters, an irreversible process.
- Making a Splash: Has the water elemental affinity and comes equipped with the Flowing Rune.
- The Medic: He is renowned as a great healer.
- Mysterious Past: He seems to be old friends with Jeane, which is an intriguing connection, given the similarities in their seemingly eternally youthful appearances.
- Really 700 Years Old: His exact age is unknown, but stories about his powers of healing far outdate his physical appearance.
The recruitable mercenaries
- Archer Archetype: Yellow Mercenary's weapon. He also comes with the Hawk Rune.
- Blade on a Stick: Blue Mercenary's weapon. He also comes with the Unicorn Rune.
- Color-Coded Characters: Blue, Red and Yellow mercenary.
- Cool Sword: Red Mercenary's weapon. He also comes with the Viper Rune.
- Defeat Equals Friendship: They join the party after being defeated at the Flowing Chamber.
- Faceless Masses: Their eyes aren´t show.
- Magic Staff: The Mercenary Leader's weapon, as she focus on spells.
- Making a Splash: Mercenary Leader's Water Rune.
- No Name Given: Their real names are unknown.
- Our Elves Are Better: The Mercenary Leader.
- Recurring Boss: They are fought at some points of the game. The Red and Blue mercenaries were hired by Sigurd to silence Walter's group in the prologue.
- Smurfette Principle: Mercenary Leader is the only girl of the team.
Voiced by: Katsuyuki Konishi (JP)
- Artifact of Doom: He possesses the deadly Rune of Punishment. Until he dies and the Rune passes to Brandeau.
- Cast From Hit Points: Steele is a user of the True Rune of Punishment.
- Cool Crown: Wars a fancy purple crown.
- The Dreaded: He is a very infamous pirate, know for his mercilessness and sadism. Kika even warns Brandeau and Edgar to stay away from him.
- Ermine Cape Effect: His brutal piracy has made him rich, and he wears opulent fur-trimmed robes and a velvet crown.
- For the Evulz: Steele enjoys terrorizing the seas and bringing misery to anyone who crosses his path. He also turns Walter into a fish monster for his own amusement and laughs when Kyril witnesses it. However, being a wielder of the Rune of punishment may (or not) have influenced his way of life and behaviour.
- Gonk: He's downright hideous. This is likely a side effect from abusing the Rune of Punishment.
- Knight of Cerebus: When he enters the scene, Hervey and Sigurd are heavily injured and taken to the Nest of Pirates to recover. In the following chapter, Steele murders Edgar and transform Walter into a fish monster (which Andarc has to kill to save Kyril) and leaves his son traumatized for three years. Also, he indirectly deforms Peck and triggers his and Brandeau's Start of Darkness.
- Making a Splash: His innate element is water.
- No Shirt, Long Jacket: He doesn't appear to like shirts, preferring to leave his chest bare.
- Pirate: Of the Type 1 unwashed, looting brute variety.
- Starter Villain: The first enemy of the story, whom the party faces in the prologue chapters.
- Taking You with Me: He was confronted ship to ship by Edgar and Brandeau, along Walter and his team. Steele was defeated by them, but used his Rune of Punishment one last time, killing Edgar, along with himself.
- Blow You Away: He is a magician specializing in Wind magic.
- Combination Attack: Roget can participate in the "Adonis Attack" (with Andarc and Coop), the "Water Dragon Attack" (with Maxine) and the "Sorcerer Attack" (with Jeane, Maxine and Simeon)
- The Dragon: He is Iskas's right hand man, and involved in searching for and forcefully taking rune cannons from wherever they are suspected to be.
- Evil Brit: For whatever reason, he is voiced with a (pretty awful) south east London English accent.
- HeelFace Turn: He will join Kyril but only by talking to him during a battle late in the game where Iskas abandons him.
- Heel Realization: After being betrayed by Iskas, Roget joins Kyril to help stop his former master.
- Horrible Judge of Character: He is completely taken in by Iskas's treachery.
- Jerk with a Heart of Gold: He's not such a bad guy really, he's just quite naive to Iskas's hold over him.
- Magic Staff: He wields the Refined Rod.
- Pest Controller: Roget's staff can mind-control fishmen, but he has trouble controlling too many at once.
- Recurring Boss: Is fought a couple of times during the game.
- Unwitting Pawn: Is used and abandoned by Iskas.
- Villain: Exit, Stage Left: He runs into Kyril several times, often skirmishing with his forces, but is always defeated and forced to retreat.
- You Have Outlived Your Usefulness: Just before the final confrontation at Graska, Iskas betrays him and sends Patriarchal Faction soldiers after him.
Voiced by: Crispin Freeman (EN)
- Arms Dealer: Introduces himself as one to Kyril.
- Beware the Nice Ones: He originally approaches Kyril's group under the guise of a foppish arms dealer, explaining he is keen on procuring Rune Cannons from anybody willing to sell them.
- Big Bad: The main antagonist of Suikoden Tactics.
- The Charmer: He successfully seduces and begins an affair with Corselia's mother, Miranda.
- The Chessmaster: Plans to marry Miranda, so he can gain control over Corselia as her regent and rule Kooluk, all part of his evil plan.
- Evil All Along: Iskas presents himself was a merchant interested in collection Rune Cannons, but later it is revealed that he is a high-ranking member of the Patriarchal Faction, and plans to use the power of the Evil Eye to take over the Kooluk Empire.
- Evil Plan: His is the leader of the Kooluk Patriarchal Faction. He feels it is unfair that the Faction does all the work in Kooluk, but he cannot have overall rule simply because he does not have Royal blood. Therefore, he decides to plan a sophisticated coup d'etat, and gain power for himself.
- Fantastic Science: To help with his evil scheme, he discovers the ability of a modified rune cannon to transform anybody who comes near it into a fish monster, unable to revert back to human form. Thus, he seeks out Rune Cannons wherever he can.
- Magic Staff: Iskas is a mage-type character and wields a staff in battle.
- Manipulative Bastard: When he fails to kidnap Corselia to advance his plan, he frames Kyril as her kidnapper, which sends the powerful Royal family after Kyril's party, allowing him to quietly pursue his goals.
- Mr. Fanservice: Certainly where Miranda is concerned.
- One-Winged Angel: During the final battle, he transforms himself into a giant fish monster, before being defeated. Finally.
- Playing with Fire: Has a Fire Rune attached.
- Shock and Awe: Iskas elemental affinity is lightning. He also uses a Thunder Rune during his boss fight.
- Villain: Exit, Stage Left: Downplayed. While Iskas don't confront the party directly, he escapes Graska with Miranda after Kyril menages to defeat his eyeless monster.
- Walking Spoiler: Most of the tropes about Iskas are related to him being the villain.
- White Hair, Black Heart: Has a silver hair and is the main villain.
- You Have Outlived Your Usefulness:
- Iskas leaves Roget to die in the hands of the fishmen so he escape with Miranda.
- Subverted with Miranda. Iskas kills Miranda because she tried to murder him to protect Corselia and atone for her sins.
The Evil Eye
- Deadly Gaze: Their gaze transforms people into monsters.
- Duel Boss: Kyril has to fight it one-on-one, as he is the only one who can enter the World of Emptiness without becoming a monster, due to his Demi-Human nature.
- Eye Motifs: Naturally.
- Faceless Eye: As seen in its final form.
- Final Boss, New Dimension: The last Evil Eye is fought in the World of Emptiness, a place where any human who enters that world will become a monster.
- Greater-Scope Villain: Like the Giant Tree, Evil Eyes are just monsters from another dimension used for warfare.
- Post-Final Boss: Iskas is the last boss fought by the team. Afterwards, Kyril has to fight the Evil Eye by himself.