The proud Clan McDuck of the Dismal Downs of Scotland. Noted for their greed, business acumen, and love of treasure.
- Been There, Shaped History: The Clan has been an influence in Great Britain's history for as long as records have been kept, with their family selling longbows to the English (and charging them extra for the arrows), inventing Golf, and then of course there's all the shenanigans that Scrooge McDuck gets into.
- Blue and Orange Morality: The fabulous Knights Templar treasure is hidden in Castle McDuck's tunnels. But by McDuck standards, any family member looking for it is a "deadbeat" looking for a "handout".
- Dysfunction Junction: The family throughout the years have had difficult and cold relations with each other. In general, the triplets and Della Duck, are the only universally liked members within the family. Donald has distant and cold relations with his cousins Fethry and Gladstone, he's also estranged from Uncle Scrooge, and even when they aren't estranged anymore, they still take turns insulting each other with Scrooge blatantly favoring Della over him and continuing to call him a moocher and deadbeat. The grandparents, Fergus McDuck has a distant relation with Scrooge and know little to nothing about Donald (based on how they mistake Launchpad for him) and Donald never told the nephews about them. Even the triplets owing to their distinct personalities don't always get along well with each other.
- Feuding Families: They've had a blood feuding going with the De Spell family for centuries, of which Scrooge and Magica are the latest incarnation.
- Honor Before Reason: The Knight Templar treasure could've restored the family's fortunes long ago, but the McDuck's familial distaste of "deadbeats" and "handouts" insured it's remain hidden for centuries.
- Impoverished Patrician: For generations the family could barely afford to live or maintain their castle or land.
- Riches to Rags: They used to be very wealthy until several misfortunes drove the family into poverty. They stay that way for generations until Scrooge came along.
- The Scrooge: Scrooge's stinginess is something he shares with his father Fergus, and which Fergus shared with his grandfather. A hatred of "deadbeats" and "handouts" is something that's passed down in the McDuck Clan though not one shared by others within the family.
- Thrifty Scot: They are from Scotland, and stinginess runs in the family.
Fergus McDuck, Laird of Castle McDuck
The father of Scrooge, Matilda and Hortense, thus the grandfather of Donald and Della, and the great-grandfather of the triplets.
- Adaptational Jerkass: In the comics, he was a supportive parent who was very proud of his son, and the only time he expressed disapproval of Scrooge was inside one of Scrooge's own Imagine Spots. Here he seems to take a grumpy and distant disposition towards Scrooge. Though it's later revealed that Fergus is mad at himself for inadvertently driving his son away by teaching him to be self-reliant to the point that Scrooge felt he didn't need his family's help.
- Companion Cube: He took care of "Whiskers", the ball of hair they bought for Scrooge when he was a child, as if he was a real pet.
- Generation Xerox: He's a carbon copy of Scrooge in terms of looks and especially his grumpiness. In fact his relationship with his son has eerie parallels with the estranged one Scrooge has with Donald. What are Fergus' first words upon seeing a cab carrying his son and extended family?
- Grumpy Bear: He makes his son Scrooge look downright cuddly in comparison.
- Inadequate Inheritor: It's implied he feels this way, since he wasn't able to rebuild the family fortunes himself either by finding the lost treasure or by hard work. The insulting note left by his father confirms it.
- Jerkass Realization: Scrooge blowing up at him that he never needed his help is when Fergus finally realizes how badly he's screwed up as parent and becomes better.
- Jerk with a Heart of Gold: He's a stubborn and grumpy person, but is still good on the whole.
- Parents as People: He was secretly ashamed that he was never able to properly provide for Scrooge the way he would've liked and was forced to teach him to be self-reliant when Scrooge was just a kid. Fergus regretted it because Scrooge learned it too well and spent most of his life away from home.
- Spared by the Adaptation: In The Life and Times of Scrooge McDuck Fergus quietly passed away from old age the night Scrooge set out with his sisters to move to Duckburg. Here he's still alive due to Scrooge rebuilding Castle McDuck with Druid stones that made Fergus and Downy immortal.
- Strong Family Resemblance: He looks a lot like his eldest son, Scrooge only with gray sideburns instead of white ones.
- Really 700 Years Old: Since Scrooge is around 150 in this continuity, that would make Fergus around 182!note Justified with the immortality-granting druid stones that Scrooge built into their castle.
- Took a Level in Kindness: Once he and Scrooge have a serious talk about their issues, he mellows considerably.
- Who Wants to Live Forever?: He and Downy are both still alive as a result of Scrooge utilizing mystic druid stones in the reconstruction of Castle McDuck cursing them with immortality. Fergus isn't all that happy about his son's gift.
The mother of Scrooge, Matilda and Hortense, thus the grandmother of Donald and Della, and the great-grandmother of the triplets.
- Doting Parent: Unlike her husband, she's overjoyed to see Scrooge again.
- Spared by the Adaptation: In The Life and Times of Scrooge McDuck she passed away while Scrooge was beginning to make his fortune in the Klondike. Here she's still alive due to Scrooge rebuilding Castle McDuck with Druid stones that made her and Fergus immortal.
- Strong Family Resemblance: She looks a lot like her youngest daughter, Hortense.
- Really 700 Years Old: Since Scrooge is around 150 in this continuity, Downy is around 177!note Justified with the immortality-granting druid stones that Scrooge built into their castle.
The middle McDuck sibling; Younger sister to Scrooge and older sister to Hortense, she is Donald's and Della's aunt and the triplets' great-aunt.
- Alliterative Name: Matilda McDuck.
- Ambiguous Situation: It's unclear if she's alive or if she's passed away. note
- The Ghost: Unlike other immediate relatives of Scrooge's, there's no picture of her in the mansion or on Webby's cork board. The only evidence that she exists in this continuity is a note with her name on the aforementioned cork board . note
Sir Donald McDuck
One of Scrooge and Donald's ancestors. Creator of the game of golf.
- Posthumous Character: He lived during the rule of King James II, so naturally he's long dead.
- Hair-Trigger Temper: Something he shares with his descendant. It was so bad that King James II was forced to outlaw golf to save the Scottish people from his tantrums whenever he lost.
- In the original Don Rosa comics, this also tied into the creation of the Scottish sports of hammer-throwing (after he threw his golf club in anger), and log-throwing (after his neighbor threw a log back in retaliation).
- In-Series Nickname: "Black" Donald
- Small Role, Big Impact: His temper led to King James II banning golf, which, in change, led to a group of druids creating the "missing links of Moorshire", i.e. a magically hidden golf course where Black Donald's descendants get trapped.
- Friendly Ghost: He shows up together with the other McDuck ancestors to scare away the Hell Hound of Castle McDuck.
- In-Series Nickname: "Dirty" Dingus.
- Jerkass: He left an elaborate treasure hunt for his son that ended in rather insulting note calling Fergus a "deadbeat" looking for a "handout" in the form of the lost family treasure.
- Jerk with a Heart of Gold: Despite the trick he pulled on his son, he was more than willing to help save his great-great grandsons from the Demon Dog.
- Like Father, Like Son: He was just as estranged from Fergus as Fergus is from Scrooge. Also, Dingus set up the treasure hunt for Fergus the same way Fergus set up the "Number One Dime" incident for Scrooge, to teach their respective children some values.
- Posthumous Character: His ghost haunts Castle McDuck.
- Thrifty Scot: He was wealthy, but he hid the family treasure from his son Fergus so that the child learns to make his own fortune.
- Unfortunate Names: His nickname, "Dirty" Dingus, sounds like a Double Entendre, something that doesn't go unnoticed by the triplets.
The Duck Family
Scrooge's youngest sister, Quackmore Duck's wife, mother of twins Donald and Della, and maternal grandmother of Huey, Dewey, and Louie.
- Birds of a Feather: She and Quackmore both had short tempers.
- Death by Adaptation: In all other versions, Donald was raised by his loving parents who died when he was a young adult. In this version, they both died with he was a small child, leading Donald and Della to be raised by their Uncle Scrooge.
- Hair-Trigger Temper: Hortense's temper was defining and legendary. Her son Donald inherited it.
- Love at First Sight: With Quackmore — when they met there were fireworks, literally.
- Posthumous Character: She passed away a long time ago.
- Strong Family Resemblance: She looks a lot like her mother, Downy.
Hortense's husband, Donald's and Della's father, and the nephews' maternal grandfather. His sister Daphne was Gladstone's mother and his brother Eider was Fethry's father.
- Birds of a Feather: He and Hortense both had short tempers.
- Death by Adaptation: In all other versions, Donald was raised by his loving parents who died when he was a young adult. In this version, they both died with he was a small child, leading Donald and Della to be raised by their Uncle Scrooge.
- Hair-Trigger Temper: Like his wife, Quackmore had a short fuse.
- Love at First Sight: With Hortense — when they met there were fireworks, literally.
- Posthumous Character: Just like his wife, he has passed away.
- Strong Family Resemblance: Looks just like a mustachioed Donald. Actually a departure from the original comic version, which was Generation Xerox between father and son.
The Extended Family
Donald's impossibly lucky cousin, who isn't on good terms with either him or Scrooge. The son of Quackmore's sister, Daphne Duck.
- Accidental Hero: There are times when Gladstone's luck indirectly causes good things to happen to people more deserving than himself, for instance "foiling" a bank robbery by gently holding down a robber who fell over in front of him. Egotist that he is, Gladstone thinks these absurd contrivances actually make him a good person.
- Adaptational Jerkass: This version of Gladstone is more of a Jerkass than his counterpart in the 80s show, where Gladstone was an Adaptational Nice Guy. This puts the character more in line with his original portrayal in the comics, where he's usually a petty, selfish Smug Snake.
- Adaptational Nice Guy: As bad as this version of Gladstone is, he still comes off slightly nicer than his counterpart in American comics. While he maintains his negative qualities he's also much less overt in showing them and his relationship with Donald is implied to be a case of Innocently Insensitive on his end. The comic version delights in aggravating and setting Donald off.
- Alliterative Name: Gladstone Gander.Gladstone: Loose as a Goose, and ready to Gander.
- Anatomy Anomaly: Unlike Scrooge and Donald, he has visible eyebrows.
- Back for the Finale: He briefly cameos in the season 1 finale, where he ends up as one of the many people whose shadows are stolen by Magica De Spell after she brings it to life. Of course, since it's Gladstone's shadow, it gives him a $20 bill before leaving.
- Birds of a Feather: His "get something for nothing" attitude really endears him to Louie.
- Bitch in Sheep's Clothing: Louie gets a rude shock when Gladstone snaps at him in a moment of stress and leaves him to chase after Donald, and that the reason he called his family to Macaw was so he could use them to get him out of a jam.
- Black Sheep: While he's not "evil", he is unashamedly lazy and selfish, with few redeeming qualities.
- Blessed with Suck:
- In "The House of the Lucky Gander'', Gladstone's luck turns out to be keeping him imprisoned in the lair of a mystical luck vampire that feeds off good fortune.
- It becomes increasingly clear that Gladstone is so lucky that all of his other life skills have been stunted to the point of effective nonexistence. He literally does not know how to handle a situation where his luck fails him, to the point that he can only call Scrooge and Donald to come bail him out. His Ignored Epiphany at the end of the episode suggests he still has a long way to go if he's ever going to grow as a person, because his luck rarely gives him a reason to try.
- Born Lucky: Sharp contrast to Donald, Gladstone's luck is downright supernatural.
- Cain and Abel: Despite being cousins, they grew up together, making him the Cain to Donald's Abel, callously leaving Donald to suffer while he relishes in his good luck.
- Carpet of Virility: The tufts of feathers peaking out of his neckline seem to invoke this.
- Catchphrase: "Hey, twenty dollars!"
- The Charmer: Explicitly called "charming" by Huey.
- Cool Uncle: Well the nephews certainly think so — especially Louie. Scrooge and Donald try to persuade the kids otherwise, the kids concede their viewpoint at the end when they find out how selfish he is.
- Deconstructed Character Archetype: Of someone who is Born Lucky. Gladstone relies on his good luck for everything, which has not only left him smug and lazy, but without any aspirations or life skills to speak of. As a result, he has no friends and, by the end of the casino adventure, has completely alienated his family leaving him completely alone. At the end of his debut episode, Webby even notes that in the grand scheme of things Gladstone really isn't all that lucky.
- Distressed Dude: Spends the majority of his debut episode held captive by luck vampire Liu Hai.
- Everyone Has Standards: Even he was taken aback when Scrooge seemingly sells out Donald to the same luck vampire keeping Gladstone prisoner.
- Fearless Fool: He doesn't give a second thought about walking into situations that he wouldn't get out of alive if he didn't have his insanely good luck.
- To Donald — While Donald is an unlucky but hard-working, (relatively) Nice Guy, Gladstone is a lazy, arrogant jerk who relies on his luck to see him through any conflict.
- To Scrooge — While Scrooge earned every penny of his vast wealth, Gladstone's luck allows him to live a carefree existence without having to work for anything he has.
- To Louie — Both are lazy and selfish (and wear green!), but Louie is undergoing character development by being put into situations where he has to apply himself whereas Gladstone appears incapable of either growing as a character or actually applying himself... even when the situation demands it.
- The Gambler: The first time we see him is in a Macaw casino resort. And he has no qualms about using his luck to give him a decidedly unfair advantage.
- Generation Xerox: To Louie, both being self-sufficient hucksters with a lazy streak, not to mention a penchant for green.
- Green and Mean: His outfit is all green and here are of his admirable traits — Lazy Bum, Smug Snake, Lack of Empathy, and a bad influence on the kids.
- Hairstyle Inertia: As seen in the flashback in his debut episode, Gladstone has maintained the same hairstyle from his youth.
- Hard Work Hardly Works: Gladstone lives by this motto since he never has to try at anything. The show though disagrees, as Gladstone's massive luck can't overcome hard work and determination as shown by Scrooge being the richest duck and Donald beating him in a race when he decides to try.
- Hate Sink: Like his comic version, he has few sympathetic tracts. His superficial charms are entertaining at first, but it's soon made clear he cares only about himself.
- Ignored Epiphany: At the end of "The House of the Lucky Gander" he resolves to get his hands dirty and make something of himself. This lasts all of two seconds before some woman in a gold plated yacht sails up and sells him the yacht for $20.
- Informed Species: He looks more like a duck than a goose. Although this may be justified in that he's half-duck.
- Innocently Insensitive: There is a hint that he might not fully realize what a smug, insufferable jackass he can be; he seems genuinely taken aback when Donald finally snaps and lays into him for making him look like a pathetic loser in front of his family. Of course, this is also because in doing so he's risking Donald storming out and leaving him still in the lurch.
- It Runs in the Family: His first appearance has him getting into some trouble — as in being-held-prisoner-by-an-Asian-luck-vampire kind of trouble. Lazy bum he may be but he is a member of the McDuck-Duck family.
- It's All About Me: "Treasure of the Found Lamp!" has him literally singing his own praises, to the tune of Beethoven's "Ode to Joy".
- Jerkass: While not as bad as his comic counterpart, he's still a selfish, lazy, smug, uncaring goose.
- Jerk with a Heart of Jerk: He is willing to share the spoils of his good luck with the triplets, but clearly he's only doing so to buy their respect, as shown in "Treasure of The Found Lamp!".
- Karma Houdini: Justified, as his supernatural good luck will prevent him from receiving any bad karma whatsoever. In other words, he's a living embodiment of this trope. It also leaves the people who would otherwise care about him not wanting anything to do with him, and as Webby points out, there are some very important ways that Gladstone isn't very lucky at all. The worst he'd get is when his good luck is a diminishing return, such as winning at games while his life is in complete danger.
- Lack of Empathy: He spends most of his first appearance making Donald look like an incompetent idiot, and only shows concern for him leaving when it looks like it will jeopardize his plans of leaving the House of Lucky Fortune.
- Lazy Bum: Scrooge calls him a "layabout", which is completely true. His way of earning income is by using his luck to win at casinos.
- Lineage Comes from the Father: Gladstone's mother was a duck and his father was a goose, but still identifies as a goose, as opposed to being a half-breed.
- Lonely at the Top: Gladstone has a lot of great things happen to him, but having real friends isn't one of them. People will stay around him for personal benefit or because of his superficial charm, but everyone who gets to know him is inevitably driven off by his selfishness.
- Nice Mean And Inbetween: In the Duck Cousins trio, selfish and smarmy Gladstone is the Mean to Donald's In-Between and Fethry's Nice.
- The Nicknamer: Gladstone refers to his family and friends by ridiculous nicknames more than he does by their real names. Instead of friendly, it's just another way he comes off as patronizing and disrespectful.
- No Challenge Equals No Satisfaction: He shows signs of being dissatisfied by only getting things through luck instead of accomplishment, especially when stuck in Liu Hai's Gilded Cage and after he realizes his family all dislike him. However, this doesn't come close to overcoming his complacency.
- Pet the Dog: When Louie angrily calls out Scrooge for seemingly selling out Donald to Liu Hai, Gladstone agrees with him and then concerningly asks Scrooge how they're going to save Donald.
- Phrase Catcher: "He's the worst."
- Rich in Dollars, Poor in Sense: Because of his overall lack of effort in anything that's magically Already Done for You, he has many faults with his attitude.
- Running Gag: 20-dollar bills appearing out of nowhere in front of him.
- Shadow Archetype: To Louie. Gladstone represents what Louie could become if he always kept the mindset "getting something for nothing".
- Sitcom Archnemesis: More or less to be stated this to Donald and Scrooge.
- Smug Snake: He revels in his luck.
- Species Surname: A gander is a male goose, which he is according to canon (despite being the cousin of a duck as well as the son of a goose and a duck).
- Spoiled Brat: It's his impossible good luck that has been spoiling him since he was a kid.
- Thicker Than Water: Both Donald and Scrooge are united in a shared disgust with him, seeing as how he not only coasts through life depending on his freakishly good luck, but shamelessly revels in his ability to do so. The trailer for his introductory episodes shows both of them giving him nothing but a Disapproving Look whenever they see him or hear his name. But since he's familynote they tolerate it to some small extent, if only for the kids' sake.
- Toxic Friend Influence: Neither Scrooge nor Donald think he's a good influence on the kids since he's completely lazy.
Donald's eccentric and accident prone younger cousin. The son of Quackmore's brother, Eider Duck. He currently works in Scrooge's deep sea underwater research lab.
- Adaptational Badass: Compared to his original comics incarnation, Fethry in this series is a lot more competent and capable, with a much higher success rate. Mind you, he hasn't lost any of his Cloudcuckoolander traits or his tendency to attract disasters wherever he goes.
- Adorkable: How can he not be with his enthusiasm for marine life?
- Affectionate Nickname: Likes to call the triplets "little Donalds" after his favorite cousin.
- Almighty Janitor: Fethry works as the caretaker of an undersea lab, but after being down there for years, he's gained the capability and knowhow of a genuine marine biologist.
- The Baby of the Bunch: Fethry's the youngest between his cousins and gets treated like an irresponsible, overly imaginative child by his relatives. This is why he is a "Cousin," rather than an "Uncle" like Gladstone, to the triplets.
- Big Ol' Eyebrows: He has unusually thick black eyebrows, probably to emphasize his unkempt nature.
- Birds of a Feather: Gets along pretty well with Huey, also being a quirky, nerdy Junior Woodchuck who wears a red hat.
- Cloudcuckoolander: A total weirdo, not that he notices. Donald, of all people, calls him "cuckoo-bananas".
- Crouching Moron, Hidden Badass: More of a weirdo than a moron, but he's adept at dealing with dangers (most of which he attracted in the first place).
- Crying Wolf: The reason why Scrooge has stopped paying attention to his calls is that he has a tendency to do this — though unlike the original Boy Who Cried Wolf, Fethry doesn't have any ulterior motives and isn't trying to trick anyone. It's just that whenever he sees something he thinks is cool he wants to share the experience with his family, and forgets that he's only supposed to call about discoveries of scientific importance.
- Ditzy Genius: Fethry is smart and quite capable when he applies himself. Unfortunately, he chooses to apply himself to random madcap fads.
- Foil: He's this to both of his cousins:
- Like Donald, Fethry has a bit of a hard-luck life, but unlike Donald he's upbeat and cheerful, and tends to meet adversity with good humour unlike Donald's bad temper.
- Like Gladstone, Fethry exasperates and annoys his family, who want little to do with him — but while Gladstone is a selfish jerk, Fethry means well but is eccentric and over-enthusiastic in sharing his esoteric interests.
- Like Huey, Fethry is an eccentric and nerdy Junior Woodchuck who is obsessed with gathering arcane knowledge and has a fondness for red coloured clothing and hats. Unlike Huey, who is focussed and organised, Fethry is a scatter-brained, disorganised and impulsive Cloud Cuckoolander.
- The Friend Nobody Likes: Judging from how they describe him, Scrooge and Donald lost their tolerance for Fethry's rambling and cries for attention long ago. Fortunately, subverted with Huey and Dewey who come to appreciate him and his weirdness after getting to know him in "The Depths of Cousin Fethry!"
- Friend to All Living Things: Fethry's not the type to judge a creature based on outer appearances. He keeps fourteen krill for company down in the labs, and when he realizes the giant sea monster attacking the aquavator is really one of them, he immediately tries to stop Dewey from scaring her.
- Fluffy Tamer: Adores all of the creatures he comes across. His solution to dealing with mutated worms that try to crush anyone they get ahold of is to complement and fawn over them, which he's found keeps them from being dangerous. His debut episode ends with his riding Mitzi, the giant mutated krill, off into the horizon.
- Generation Xerox: Much like Gladstone to Louie, serves as this to Huey. Both are red-clad hat-wearing science enthusiasts who are also Junior Woodchucks.
- I Just Want to Be Loved: Fethry seems to want affection and love from his family. Hence his constant calls to Scrooge and Donald to share his interests with them. He's also heartbroken when his little cousins rebuke him after it turns out he's only the caretaker and not the scientist they saw him as.
- Keet: Like his comic counterpart, Fethry's very energetic.
- Long-Lost Relative: Due to the fact he's, in Donald's words, "cuckoo bananas", the triplets never met him before Huey and Dewey visited him at the undersea lab.
- Loon with a Heart of Gold: Despite the fact that he's got a slight case of Go Mad from the Isolation, he's an overall sweet guy who cares for both his marine life friends and his favorite cousin's nephews.
- Mock Cousteau: Wears a red knitted hat and has an affinity for sea life. Huey and Dewey initially mistake him for a marine biologist.
- Nice Guy: His oddness aside, Fethry is kind, encouraging and open-minded, and generally a very good-natured guy lacking Donald's incredible temper and self-pity even if he has also had a hard-luck life.
- Nice Hat: A red knitted hat that he never takes off. He explains that he's just following the advice of the Junior Woodchuck Guide - "a warm head breeds warm, healthy thoughts."
- Nice Mean And Inbetween: In the Duck Cousins trio, eternally friendly and optimistic Fethry is the Nice to Donald's In-Between and Gladstone's Mean.
- Perma-Stubble: He's got two small hairs on his chin.
- Reassigned to Antarctica: It's implied that Scrooge sent him to mind an abandoned lab just to keep him out of his feathers.
Professor Ludwig Von Drake
Donald's other uncle, a famous scientist who used to work for Scrooge in the 1960s as his personal inventor just like Gyro does now. He was also the director of the spy agency S.H.U.S.H.
- Adaptational Badass: He keeps his inventor background, but now, he's also the director of SHUSH.
- Ambiguous Situation: How does he fit into the family tree, exactly?note
- Ascended Extra: He was a very minor character in the original, appearing as Launchpad's shrink in one episode, "The Golden Fleecing". Here, the producers appear to have bigger plans for him by making him the director of S.H.U.S.H.
- Composite Character: He's both himself and J. Gander Hooter, as he gets Hooter's position as head of SHUSH.
- Death by Adaptation: Most of his incarnations are currently alive, but this version of Von Drake is very heavily implied to be deceased, as his children are running the Doomsday Vault and Scrooge refers to him in the past tensenote .
- Mad Scientist: He's a bit on the loopy side, but a brilliant scientist nonetheless.
- Posthumous Character: Heavily implied to be this in "Raiders of the Doomsday Vault!", as he's talked about in the past-tense and doesn't appear outside of video recordings.
- Role Reprisal: He's the only character besides Donald who's voiced by the same voice actor as he was in DuckTales (1987).