New characters introduced in Doraemon: Nobita's Great Adventure in the South Seas.
Captain Kidd
"All hands on deck!"
The Captain William Kidd, a legendary pirate, depicted here as a hero. Searching the Southern Seas for his missing brother and nephew, William Kidd unintentionally picks up Doraemon and gang after they were accidentally teleported from the present to the Golden Age of Piracy thanks to entering a time portal. After some hijinks, Kidd managed to convince Doraemon to help him locate his brother and nephew, which they agree because they're stranded in the past and would need assistance to survive.
- Authority Equals Asskicking: The leader of his pirates and the best fighter among them.
- The Captain: None other than that Captain William Kidd, himself a major player of the adventure.
- Cool Uncle: To Jack and Betty.
- Eyepatch of Power: Befitting a pirate captain.
- A Father to His Men: Treats his crew like a family, especially towards his niece and nephew.
- Good Scars, Evil Scars: Has a cross-shaped scar on his left cheek, of the "good" variety.
- The Pirates Who Don't Do Anything: He's introduced battling a horde of hostile pirates, and never shown raiding innocent ships or looting coasts. Then again, the major threat of this adventure are sea monsters, not pirates.
Jack
"Don;t worry, I'll take care of Nobita."
William Kidd's nephew and Betty's younger brother, who got stranded on a hostile island of monsters after his father's ship unexpectedly dissappears. He ends up meeting Nobita who was separated from his friends, and the two of them forms a mutual bond.- Action Survivor: Being a child some seven years of age, stranded alone in an Isle of Giant Horrors and surviving for more than two weeks by himself? Yep.
- Adorably Precocious Child: He's really, really hyperactive and lively.
- Badass Adorable: Being a child doesn't make him less of a badass, especially being one who survived for weeks on an island of monsters.
Betty
"You'll make a good pirate, Gouda Takeshi-san."
William Kidd's niece and a capable pirate on his team. She's looking for her father and brother, after they dissappeared under mysterious circumstances. During a fierce battle with enemy pirates, she rescues Shizuka who's caught in the chaos, only to be rescued back by Gian when another pirate tries ambushing her.- Adaptation Dye-Job: The manga depicts her as a blonde, but she's a redhead in the anime.
- But Now I Must Go: Not from her, but at the end of the adventure with Cash, Dr. Clone and the villains arrested by the Time Patrol, and the imprisoned prisoners freed, Betty begs for Gian to stay. Gian sadly says this trope word-for-word, since he's from the future and needs to return to his era.
- Cool Big Sis: Jack's older sister and a powerhouse in her own right.
- Fiery Redhead: In the anime only.
- Only One Finds It Fun: She enjoys Gian's singing, and was moved to tears by it in the finale when Gian, trying to stop rampaging monsters while armed with Doraemon's Sound Amplifier, decide to belt out some tunes to keep the monsters at bay. To reiterate, it's Gian's music, which in the finale is enough to scare monsters into retreating after being amplified... and Betty actually begs for Gian to sing another one, much to Suneo and Shizuka's horror.
- Pirate Girl: Captain Kidd's niece, who is as competent a pirate as her uncle.
- Puppy Love: Develops one with Gian after he saved her from an enemy pirate. The feeling is quite mutual.
- Ship Tease: With Gian.
Pancho and Gonzales
Two of Willaim Kidd's more prominent pirate followers who had more screen-time than the rest of his men.- Dressing as the Enemy: Gonzales managed to sneak into Cash's hideout after knocking out one of Cash's guards and with Pancho as his "prisoner". After some fumbling around they unintentionally frees Doraemon, Captain Kidd and all the others.
- Expy Coexistence: They appear to be the direct equivalent of Suneo and Gian from the main series. So it's no surprise Suneo and Gian gets plenty of scenes alongside Pancho and Gonzalez during the adventure,
- Fat and Skinny: Gonzales and Pancho, in that order.
- Spanner in the Works: Cash's guards managed to arrest all of the heroes, including Doraemon and Captain Kidd, save for Pancho and Gonzalez. The two of them then sneaks into the mines where other enslaved pirates and civilains are Working on the Chain Gang, steals uniforms, and help the heroes escape.
- Those Two Guys: They always show up together in every scene.
Ruffin The Dolphin
He's the one on the bottom.
Jack's dolphin sidekick which he befriends while lost in the deserted island. But there's more to Ruffin than meets the eye.
- Big Damn Heroes: The ending has Nobita, Jack, Kidd and everyone else, including the slaves they liberated from Cash's hideout, escaping into the oceans as the Collapsing Lair goes down behind them. In the nick of time, a herd of dolphins led by Ruffin arrives and saves everybody from certain doom.
- Friendly Dolphin: One that belongs to Jack, and later saves Nobita and Jack while carrying them around rivers.
- Heroic Dolphin: One of the shinning examples in anime. He's a hyper-intelligent dolphin cop and secret agent from the 22nd Century investigating Cash's activities, and saves the heroes - as well as dozens and dozens of liberated slaves - in the climax.
- Sapient Cetaceans: An intelligent dolphin from the future who can communicate with the human characters.
- Strapped to an Operating Table: Briefly suffers this fate after he was captured by Cash's minions, with Dr. Clone about to fuse him alive with a Giant Crab as his "latest masterpiece". Thankfully Doraemon, Nobita and Jack barges in.
- Talking Animal: He can communicate with humans thanks to having a communicator chip in him, and understands humans perfectly well.
- Time Police: An animal agent working for the Time Patrol, investigating Cash's activities in the past.
- Uniformity Exception: In the anime, Ruffin's the only pink dolphin around, though it's justified since he's from the future.
- Uplifted Animal: Downplayed, Ruffin is one of the most intelligent dolphins from a 22nd Century marine facility, but he still needs to rely on human technology to become intelligent to the point of carrying out covert activities for the Time Patrol.
The Villains
Cash
"... and get that stupid blue racoon!"
A billionaire from the 22nd Century who funds the creation of giant monsters, and the main villain of the picture.- Ain't Too Proud to Beg: Despite repeatedly mocking Doraemon earlier, the moment he's trapped in Leviathan's stomach with Doraemon and realize he's about to be digested alive, he begs Doraemon to save him.
- Big Bad: The main villain of the story. A wealthy billionaire from the 22nd Century who deals with selling genetically-modified monsters to the black market, who escaped to the Golden Age of Piracy to continue his activities.
- Dastardly Whiplash: His two thin strands of hair on his 'stache really sells the "I'm so evil" look.
- Dirty Coward: The wealthy, all-too-powerful villain who enslaved hundreds and hundreds of innocent people in his mines, with plenty of monsters in his disposal, ends up breaking down and sobbing when he realize he's about to die.
- Horned Hairdo: His hairstyle resemble two horns protruding from either side.
- Humans Are the Real Monsters: The various monsters and abominations in this adventure turns out to be the result of Cash's activities, who intends to sell his abominations to the black market - and to facilitate his base of operations, have hundreds of pirates, civilains, and innocent people enslaved in his mines as labourers. The monsters may be scary, but they're mostly non-malicious and only driven into attacking everything in sight thanks to Cash having Dr. Clone implanting chips inside them.
- Irrational Hatred: Towards Doraemon, of all people. After realizing he could trigger Doraemon's Berserk Button by calling him a "raccoon", he would repeatedly use this phrase to taunt Doraemon while having Doraemon locked in his cells. Later as the heroes managed to escape with the rest of the slaves, Cash decide to unleash the Leviathan to devour everyone, "especially that stupid blue racoon"!
- Island Base: His lair in Tomo Island, which houses his monstrosities ready to be sold to the black market, and with hundreds and hundreds of enslaved prisoners in the mines.
- Laser-Guided Karma: He who ordered the Leviathan to devour the heroes gets swallowed by the Leviathan. Cash didn't die, but he does get spit out with most of his clothing dissolved by the Leviathan's stomach acid, and arrested in the aftermath.
Dr. Clone
"Ah yes, my latest masterpiece!"
A wanted geneticist and biologist from the future, which Doraemon recalls was kicked out of the scientific community for his twisted experiments. He was recruited by Cash for creating the monsters and twisted experiments in their hideout in the past, before selling their creations in the future's black market.- Bald of Evil: A dangerous genetics expert who had interest of tampering with animal DNA to create monstrous abominations, and doesn't have a single hair on his head.
- The Dragon: The secondary villain of the picture, after Cash.
- Evil Old Folks: The oldest of the villains.
- Evilutionary Biologist: He's the evil biologist whose team are funded by Cash to create various sea monsters and abominations, so they could be sold to the black market. He's proud of his creations, too.
- Mad Scientist: He sees the various abominations he created, and sent to destroy ships and abduct prisoners, as his own "masterpieces".
- Non-Action Big Bad: The scene where he tries defending himself spells it out: realizing William Kidd and the rest of the heroes have him cornered, he then grabs a nearby iv stand as an impromptu weapon... and falls over with the stand collapsing on him.
- Skewed Priorities: He tried mutating Ruffin, only for Nobita, Doraemon and Jack to interrupt him, Nobita holding William Kidd's flintlock pistol on Dr. Clone telling him to release Ruffin. Realizing Clone isn't willing to comply, Nobita fires a shot and damages the control panel, short-circuiting the device holding Ruffin in place, and Clone then reacts in panic... not that Nobita is holding a pistol on him, but because his precious genetic mutation machine is damaged.Nobita: To hell with your experiments!
The Leviathan
- The Juggernaut: The gang's attempts to subdue Leviathan with Cash's tranquilizer takes forever. And it works only for a few seconds before the Leviathan comes back.
- Kraken and Leviathan: The latter. The Krakken also shows up, but in a tank and is nowhere as powerful as the Leviathan.
- Legend Fades to Myth: The ending reveals that while the Time Patrol managed to recover and restore most of the monsters created by Dr. Clone to their normal states, the Leviathan however got away. But since Cash, Dr. Clone and all the villains are arrested, the Leviathan is no longer a dangerous monster and is content with roaming the seas on it's own, where it becomes the inspiration behind the Leviathan mythos from ancient times.
- Non-Malicious Monster: The Leviathan was originally a harmless sea creature abducted by Cash's minions and modified into becoming a rampaging sea monster by Dr. Clone, with Cash's implants forcing the Leviathan into becoming hostile. Without the villains it quickly reverts to a benevolent creature.
- Sea Monster: The biggest and most powerful of the monsters created by Dr. Clone.
