Voiced by: Rick Jones (English, Season 1), Rob Paulsen (Film)
Adorkable: Aside from being small, gangly and goofy, he has his moments of actually being very cute, particularly when in "Baby Love, Oh Baby Love" he falls for a beautiful stranger and tries to impress her. Further emphasised by the fact that Jeanneline is clearly in love with him.
Anti-Hero: While not as extreme as the typical examples, Gwizdo is still usually a cowardly and greedy swindler. He has extorted, blackmailed and kidnapped to get big money. He may have become irredeemable long ago if it weren't for his buddy, Lian-Chu.
Big Brother Instinct: He usually can't stand children, but he cares a lot about Zaza and sometimes acts like an older brother to her, and she's one of a handful of people he's willing to protect.
Everyone Has Standards: He's genuinely shocked when the local lord in "Collywoble Water" would let Hector devour the town to keep all of the klurks.
Freudian Excuse: His egotism stems from his miserable childhood at Mother Hubbard's orphanage: the poor kid was bullied and abused and even Mother Hubbard doesn't think too highly of him, despite the fact that he was a business prodigy.
Jerk with a Heart of Gold: Though he's cowardly, selfish, lazy, loud-mouthed and a shameless cheat, he's still a good man and is mostly loyal to those he considers friends. He has a particular soft spot for Lian-Chu, Zaza and Billy. In "The Conjunction of the Three Moons", Zaza says that he's not so bad once you get to know him.
Kick the Dog: He will often make Hector do all the dirty work, insult him and use him as bait for the dragon of the week.
Kick the Son of a Bitch: That said, in "Billy Toughnut", when Hector made fun of Gwizdo for crying, Gwizdo threatened to cook him.
Lovable Rogue: He's a slippery, greedy extortionist, but he's got charm and charisma, and a hidden heart of gold.
Manchild: He's in his thirties but he's impulsive and although he's cunning, resourceful and academically intelligent, he can be rather immature.
Never Bareheaded: He rarely takes his hat off. He even wears it to bed at times.
Nominal Hero: While loyal to his friends, Gwizdo is primarily in the Dragon Slaying business for the money.
Non-Action Guy: He's not much of a fighter. He lets Lian-Chu do all the fighting and relies on him to help him out of trouble. Played for drama in "The Strange Taste of Cocomak", where his uselessness in a fight sends him into a deep, introspective depression.
Not a Morning Person: He doesn't wake up well in the morning and sometimes complains about having to get up early.
Older Than They Look: He's in his early 30's but looks like he's in his early to mid 20's. He looks like a twelve year old at the very least.
Sand In My Eyes: In "Billy Toughnut", he cries when he listens to Billy despairing over the reveal that Gwendolyn is a giant spider. Embarrassed, he dismisses it as "dust in his eye", though his voice is clearly choked.
The Unfavorite: He was picked on by everyone at Mother Hubbard's Farm. Mother Hubbard herself was no help either.
Unsympathetic Comedy Protagonist: He regularly gets his comeuppance, whether it's from cheating a client or mistreating Hector. In "Desperately Seeking Zoria" he's amusingly callous about the possibility that Zoria died on a mission.
All Animals Are Dogs: Even though Hector is a dragon, he acts like a dog, but gets angry if someone mistakes him for one. Furthermore, Gwizdo tries to pass him off as one often.
Beleaguered Assistant: He ends up doing the majority of the grunt work for Gwizdo and Lian-Chu: carrying heavy loads of equipment and supplies, pedalling the St. George, sharpening weapons, and even (at one point) doing Gwizdo's laundry. While Lian-Chu seems appreciative of Hector's efforts and treats him with respect as a part of the team, Gwizdo often adds insult to injury by loading on the verbal abuse. Hector responds to Gwizdo by grumbling about the situation.