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Finn the Human, also known as Finn Mertens, is the main protagonist of Adventure Time. He is a brave, adventurous boy with a strong moral compass, often accompanied by his magical dog, Jake. Finn is known for his desire to become a great hero in the Land of Ooo.
We kick off our collection of Adventure Time costume ideas with this simple yet iconic Finn the Human outfit. Check out our dedicated costume guide for step-by-step instructions!
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Jake the Dog is a magical, shape-shifting dog with a laid-back personality, serving as Finn’s best friend and mentor. Jake possesses the ability to stretch and manipulate his body, often using his powers for fun and adventure.
Could Jake and Finn be one of the best matching costume ideas for best-friends we have ever made? We’ll let you be the judge!
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Princess Bubblegum, also known as Bonnibel Bubblegum, is the ruler of the Candy Kingdom. She is a candy elemental and brilliant scientist, balancing her responsibilities with a strong, independent personality while navigating complex relationships, notably with Marceline.
Dress lie Princess Bubblegum with an adorable pink dress and a one-of-a-kind homemade crown. See our complete guide for everything you need!
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Flame Princess is the daughter of the Flame King, with fiery powers and complex personality, often struggling to contain her emotions and the power that comes with them.
This is a more unique Adventure Time outfit idea and well suited for someone who wants to look hot-as-hell in a stunning red dress and matching fiery hair.
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Ice King, originally Simon Petrikov, is a blue-skinned wizard with ice powers, known for kidnapping princesses and his tragic backstory, revealing his loneliness and mental deterioration caused by a magical crown.
Get the princess of your dreams with this funny and super simple Ice King outfit idea! Discover how to make your own look with our complete cosplay guide.
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Fionna the Human is a gender-bent version of Finn from Adventure Time. Introduced in the episode “Fionna and Cake,” she is adventurous and tough, navigating her own unique challenges and romantic interests in the magical Land of Ooo.
Proving that girls are as good as (if not better) adventurers than boys, this Fionna costume is very similar to Finn’s with just a few choice variations.
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Marceline the Vampire Queen is a half-demon vampire over 1,000 years old, she plays an electric bass guitar and sustains herself on the color red, embodying a complex mix of mischief, independence, and emotional depth.
Marceline is one cool cookie and this rock-and-rolling costume idea is one of our absolute favorites from Adventure Time.
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Earl of Lemongrab is a socially dysfunctional creature created by Princess Bubblegum. He rules the realm of Lemongrab with an intolerant and tyrannical demeanor, often exclaiming “UNACCEPTABLE!” while struggling with his identity and interactions.
Are you looking for a funny and unique costume idea that we can (almost) guarantee that no-one else will be wearing? Look no further than the mighty Early of Lemongrab!
Adventure Time is one of the whackiest and most chaotic cartoons to ever grace our screens and we can’t get enough of it! Total fun for children and adults alike, this series is pure, unadulterated joy in its most hilarious form.
So, dress like Jake the Dog, Finn the Human, Princess Bubblegum, and more with our complete collection of Adventure Time costume ideas and dedicated step-by-step outfit guides!
