20 Best Adventure Time Characters, Ranked

It’s rare for an animated show to be as memorable as Adventure Time. The series follows the unusual journeys of Finn the Human and Jake the Dog in the Land of Ooo, but it’s the show’s large and quirky supporting cast that truly made it special. Everywhere you looked in Ooo, you’d meet a strange, delightful, or surprisingly insightful character.

As a longtime watcher of Adventure Time, I know everyone has their go-to characters. But a few really broke through and became truly iconic. These characters weren’t just funny or weird – though many were both! – they had a depth and complexity that you rarely see in animated shows. For me, these faces are what make Adventure Time so special and unforgettable.

The Lich (Ron Perlman)

The Lich is the scariest villain in Adventure Time, representing complete and utter evil. This decaying sorcerer wants nothing more than to destroy all life. With Ron Perlman providing a haunting voice performance, The Lich brought a uniquely frightening presence to the show, quickly becoming one of its most unforgettable enemies.

As a huge fan, I always felt that The Lich really made Adventure Time. His episodes, like “Mortal Folly” and “The Lich,” weren’t just scary, they added so much depth and a real sense of ancient, overwhelming dread to the whole story. Even when the heroes beat him, you always knew he wasn’t truly gone – he felt like this force that existed beyond everything, representing the never-ending battle between creation and destruction. Honestly, his creepy design and that calm, measured way he spoke made him one of the most impactful characters in the series, and a big reason why Adventure Time was so special.

Cosmic Owl (Jeremy Shada/M. Emmet Walsh)

The Cosmic Owl is a fascinating and enigmatic character in Adventure Time. This dream spirit shares visions of the future and is known for his deep, raspy voice and calm personality. He’s a strangely humorous yet sad figure, a powerful being seemingly stuck repeating the same events.

The Cosmic Owl often shows up in strange dreams and embodies the show’s interest in fate versus choice. He might be making prophecies come true, or hilariously messing them up, but he’s a great example of how Adventure Time blends silly humor with genuine emotional depth.

Mr. Fox (Tom Herpich)

Mr. Fox is a charmingly quirky and surprisingly insightful character in Ooo. He’s not a hero who battles monsters or wields magic, but his subtle personality and especially his calm, emotionless way of talking make a lasting impression.

Mr. Fox, featured in episodes like “Storytelling” and “Jake the Dad,” is a great example of how even minor characters in Adventure Time are surprisingly well-developed and unique. He’s a down-to-earth character who provides a funny contrast to the show’s usual craziness, proving that Adventure Time can make any character, even a seemingly ordinary one, feel important and hilarious.

NEPTR (Andy Milonakis)

Finn and Jake created the Never Ending Pie-Throwing Robot, or NEPTR, and like a lot of their creations, he’s a lovable mess. With Andy Milonakis providing the voice, NEPTR is charming because of his innocent excitement and surprisingly sad search for meaning.

Though he’s often used for comedic effect, NEPTR is more than just a joke. His sincere loyalty and willingness to help give him real depth, making him a memorable character. He embodies the spirit of Adventure Time – a show that blends humor, heartfelt moments, and creativity. NEPTR proves that even the silliest characters can be surprisingly endearing and connect with audiences.

Huntress Wizard (Jenny Slate)

Huntress Wizard is a compelling and strong character who adds a unique depth to the playful world of Adventure Time. She’s both elegant and powerful, often appearing mysterious and determined, and Jenny Slate delivers a perfectly subtle performance as her voice.

As a huge fan of Adventure Time, I’ve always been fascinated by the Huntress Wizard. Her scenes with Finn, particularly in “Flute Spell,” really showed a depth and emotional maturity we hadn’t seen much of before in the series. What I love about her is that she’s so independent and connected to the natural world, making her a truly captivating character. She’s a unique mix of powerful magic and genuine vulnerability, and honestly, she’s become one of my favorites in the whole show.

Peppermint Butler (Steve Little)

Peppermint Butler seems like a simple, polite character in Adventure Time, but he’s actually much more complex. While appearing as Princess Bubblegum’s loyal servant, he secretly practices dangerous magic, including raising the dead and summoning demons, with surprising skill.

Peppermint Butler is a standout character in Adventure Time because of his surprising contrasts. He perfectly embodies the show’s tendency to combine sweet, charming appearances with genuinely unsettling themes – one moment he’s enjoying a peaceful tea party, and the next he’s conjuring dark magic. Episodes like “Death in Bloom” and “Nemesis” really showcase his delightfully creepy side.

Susan Strong (Jackie Buscarino)

Susan Strong is a fascinating and enigmatic warrior who lives in the land of Ooo. Her past is revealed bit by bit throughout the series. At first, she appears as a wild, untamed character, but she eventually represents finding yourself, overcoming challenges, and understanding who you are.

Susan’s relationships with Finn and the other people of Ooo give her story a lot of heart. We see her change dramatically from a mysterious figure into a hero who is both strong and deeply caring, making her one of the most well-developed characters in the series. Fans who enjoy the show’s more thoughtful and emotional storylines will especially appreciate her.

The Earl Of Lemongrab (Justin Roiland)

As a huge fan of Adventure Time, I always loved how memorable some of the side characters were. The Earl of Lemongrab, voiced by Justin Roiland, quickly became a favorite – and a bit of a legend! Seriously, anyone who’s seen the show probably remembers his ear-splitting scream and his catchphrase, “UNACCEPTABLE!” He was totally over-the-top and stole every scene he was in, right from the start.

Lemongrab is more than just a funny character; he’s a surprisingly poignant exploration of loneliness and the corrupting influence of power. His journey from sanity to madness, his attempts to create copies of himself, and his eventual path toward making amends are all hallmarks of Adventure Time‘s ability to blend humor with genuine sadness. He’s a truly memorable character – funny, heartbreaking, and completely unique within the Land of Ooo.

Prismo (Kumail Nanjiani)

Prismo, the wish-granting being who lives inside a cosmic entity’s dream, is a perfect example of how Adventure Time mixes science fiction, fantasy, and deep thinking. Kumail Nanjiani’s relaxed voice acting adds to Prismo’s effortlessly cool personality.

Prismo is a beloved character who feels like the perfect laid-back cosmic friend. Despite being incredibly powerful, he’s surprisingly easy to connect with. His relationships with Jake, and his thoughtful moments in episodes like “Wake Up” and “Is That You?”, give depth to his strange life. Prismo is one of the few characters in Adventure Time who can be both funny and a little sad.

Gunter (Tom Kenny)

Gunter initially appears as simply the Ice King’s penguin companion. But throughout the series, he develops into one of the most bizarre and surprising characters in Adventure Time, eventually being revealed as the ancient cosmic being known as Orgalorg.

Honestly, Gunter is one of my favorite characters – he’s just brilliantly funny and totally unhinged. Tom Kenny really nails the performance, giving him this wonderfully weird energy that fits perfectly into the world of Ooo. But it’s not just the humor; Gunter is unpredictable, and the hints about his secret, powerful background make him so much more interesting than your average quirky side character. He really stands out!

2025-11-13 01:21