- Barefoot Cartoon Animal: The main four usually go out shoeless, but some of the minor characters happen to usually not wear footwear either.
- Black Bead Eyes: Most every character has these eyes.
- Cartoon Creature: Every single character in this series. However, you can make out the normal animal features of at least a few of the characters. Wubbzy even insists that he isn't an animal when he was interviewed that one time.Wubbzy: I'm not an animal, I'm Wubbzy!
- Four-Fingered Hands: Every anthropomorphic character.
- Vague Age: Most, if not all, characters' ages remain unknown.note
- You Gotta Have Blue Hair: While the characters are vaguely based on real animals (for example, Wubbzy being based on a gerbil), you really wouldn't expect a rabbit to be pink or a bear to be purple in Real Life.
- Voice actor: Grey DeLisle
The titular main character of the show. According to the show's bible, he represents the pure child who solves problems with his child-like simplicity and sees the world through untainted eyes. He loves to play with his friends. He is also the only one of the main four with a tail.
- Affectionate Nickname: "Little buddy" and "Wubbster" are the two nicknames Widget would sometimes call Wubbzy.
- Attack of the 50-Foot Wubbzy: In Wubbzy's Big Idea.
- Breaking the Fourth Wall: He sometimes talks to the audience.
- Cartoony Tail: He has a prehensile, apparently shock-absorbent tail that either works as an extra hand or a bouncy spring. It is also mentioned a bunch of times to be highly flexible."Wubbzy lives in a tree, he likes to play play play! He's got a bendy tail and he likes it that way!"
- Catchphrase: "Wow" is his favorite word, as he said it a lot of times, usually as a greetingnote or a form of amazement. He also used the word to greet the viewers in the Theme Tune.
- Cheerful Child: He is very cheery and playful.
- Does Not Like Spam: According to a rare interview, he isn't old enough to like brussel sprouts.
- Evil Lawyer Joke: Wubbzy considered dressing up as a lawyer for Halloween to scare poeple.
- Funny Animal: He slightly resembles a gerbil.
- Keet: See Cheerful Child above.
- Large Ham: Right when he introduces himself during the Theme Tune, you know he's gonna exhibit this.
- Me's a Crowd: Too Many Wubbzy's
- Partially Civilized Animal: He was this in The Tail of Flopsy, Mopsy, and Ted, lthough back then he was Mopsy.
- Prehensile Tail: His tail can do including but not limited to:
- Series Continuity Error: In Perfecto Party, Wubbzy was shown to be allergic to marshmallows. In every other episode where Wubbzy is shown eating a marshmallow, there's no allergic reaction.
- Trademark Favorite Food: Anything that has doodleberries in it. He also likes grapity-grape juice.
- Voice actor: Lara Jill Miller
The Gadgeteer Genius with rabbit-like ears and the owner of her own fix-it shop. Widget seems to be the "go-do-it-now" type of person. When she sees a problem she can solve, she either introduces her friends to a machine she designed for such situation, or she sets to work on building a new invention. However, no matter how simple the problem may be, she tends to build some sort of overly-complicated invention. She speaks with a Southern accent.
- Absentee Actor: She doesn't appear in Who's That Girl?, New Kid on the Block, and What a Card.
- Catchphrase: When she sees a problem she can solve, she says "No problemo!," and whenever her machines malfunction, she says, "That's not supposed to happen," or, "That wasn't supposed to happen."
- Funny Animal: Going by the long ears, she kind of looks like a rabbit.
- Gadgeteer Genius
- Inexplicably Tailless: Played in the series, but subverted when she was first designed as "Flopsy"note .
- Pink Is Feminine: She is pink.
- Robot Me: In Gidget the Super-Robot, Widget makes a robot twin.
- Rube Goldberg Device: She does make overly-complicated machines for something as trivial as straightening a picture frame.
- Tomboy and Girly Girl: The Tomboy to Daizy's Girly Girl.
- Tomboy with a Girly Streak: Despite the fact that she likes to invent gadgets, she also likes girly things such as ballet.
- Trope 2000: Widget names her inventions with the number "3000" tacked onto the end.
- Unknown Relative: To the audience. In Once Upon a Wubbzy, she states that the pickleberry bush she received was from her cousin, named Ratchet. However, they were only mentioned and have yet to be shown on-screen.
- White Bunny: Colorfully subverted.
- Voice actor: Carlos Alazraqui
The quirky Omnidisciplinary Scientist. Walden has a passionate curiosity for everything and views the world in a unique way. He has been shown to help his friends by reading books and using science, though the Theme Tune implies he knows about art as well.
- Absentee Actor: He doesn't appear in Who's That Girl?, New Kid on the Block, and What a Card.
- A Day in the Limelight: He's the star of the episode Mr. Cool. Walden is also the only character that was able to star in his own music video.
- Adorkable: He's cute in appearance, as the main four and some other characters are already, and he's already shy with his secret fears.
- Beary Friendly: According to The Other Wiki, he's an overall nice bear.
- Bookworm: Books happen to be part of his specialties. Wubbzy stated in an interview that he got smart through reading books.
- Catchphrase: His well known catchphrase is "Think, think, think!" He also uses "Yes, yes, yes!", "My, my, my!", and "Very interesting!"
- Half-Dressed Cartoon Animal: He normally does not wear any pants.
- Funny Animal: It is unclear what Walden is even meant to be, though The Other Wiki says that he is a bear.
- Omnidisciplinary Scientist: The Theme Tune says it all:"Walden is his friend, he's really smart, he knows about science and books and art..."
- The Smart Guy
- Voice actor: Tara Strong
A dog-like Girly Girl introduced in season 2 with it's premiere, Who's That Girl?. She is considered to be Wubbzy's opposite, being smart, patient, graceful, and girly.
- All Girls Like Ponies: In the episode Call of the Mild, she sees a unihornnote and wants to play dress up with it. Enough said.
- Catchphrase: "Lavender lollipops!"
- Caring Gardener: She loves to plant flowers. Her gardening talent was a focus in Daizy's Purple Thumb.
- Cousin Oliver: Non-aging example. Daizy does not appear in the first season; in episodes after her introduction she is hilariously wedged into the Theme Tune by changing the line "and when they're together the fun never ends" to "and when they're with Daizy the fun never ends".
- The Chick: Daizy is a sweet girl who loves flowers, ballet, and unihorns, among other feminine pursuits. However, she does like playing kickity-kick ball.
- Floral Theme Naming: Her name is just "daisy" but with a z instead of an s.
- Flower in Her Hair: She has two, and they hold up her pigtails.
- Funny Animal: She vaguely looks like a dog.
- Girlish Pigtails: She has these.
- Girly Girl with a Tomboy Streak: She likes kickity-kick ball, and holy heck is she good at it.
- Graceful Ladies Like Purple: She has purple hair.
- Hair Decorations: Her hair is held up by flowers and she wears a bow on her head.
- Never Bareheaded: Daizy usually doesn't change her hair from the normal pigtails (except for that one time in Meet the Wuzzles, though she was not seen with her hair down). She even sleeps with her hair still in pigtails and with her Hair Decorations. She has yet to be seen with her hair down.
- Odd Name Out: She is the only main character whose name does not start with a W.
- Pink Is Feminine: Most of her outfits, including the ballerina dress she normally wears, are pink in color.
- Tomboy and Girly Girl: The Girly Girl to Widget's Tomboy.
- Twinkle Smile: Daizy has white clean teeth that sparkle in Who's That Girl?
- Unusual Euphemism: See Catchphrase above.
- You Gotta Have Blue Hair: It's obvious that - regardless if she is a creature based on a dog or if she really is a dog - that she is aqua-green. She also has purple hair.