The Himalayan Yetis
A young teenage male Himalayan Yeti who tries to prove that Smallfoot (actually humans) exist. He is the main character in the movie.
- A Dog Named "Dog": "Migo" is another word for Abominable Snowman.
- Gentle Giant: Even though Migo is described as being 18 feet tall and looks very big and imposing (especially to Percy when they first meet), he is very peaceful, non-aggressive, friendly and loving and never acts out violently towards anyone.
- Heroic BSoD: He goes through this after being forced by The Stonekeeper to lie about the existence of "Smallfoot".
- Idiot Savant: It is heavily implied by the Smallfoot film that Migo literally is an autistic savant. His behavior matches those who have high functioning autism to a T.
- Innocent Blue Eyes: Migo has sky blue eyes (mixed with violet purple) and is generally extremely friendly, very innocent and incredibly heroic.
- Kindhearted Simpleton: Even though Migo acts dumb and does things before thinking about it, he makes up for his average or above average intelligence by being very kind-hearted, goofy, courageous, loyal and sweet.
- Nice Guy: Migo is very cheery and friendly. He’s the kindest most sweet-natured Yeti in the movie. He has no mean or evil bone in his body.
- The Pollyanna: Channing Tatum literally calls Migo the “ultimate optimist” which means that Migo is always so cheerful, hopeful, bright, positive and childlike.
- Ship Tease: With Meechee. He is strongly implied to have a huge crush on her through the movie and a scene near the ending of the movie implies that she feels the same way.
- You Have to Believe Me!: He wants to prove to the Village that he saw a Smallfoot after being exiled from the village for lying, disobeying the stones and for causing a scene.
A young teenage female Himalayan Yeti who is the leader of the S.E.S. (Smallfoot Evidentiary Society) Migo’s love interest and the Stonekeeper's young daughter.
- The Chief's Daughter: Her father is the Stonekeeper.
- Constantly Curious: Is very curious about the world beyond the mountain. This puts her in conflict with her father, who orders the other yetis not to question the stones.
- The Leader: Meechee is the leader and supposedly the founder of S.E.S.
- Nice Girl: Meechee is a kind and friendly yeti who shows deep appreciation for creatures around her, including humans. Apart from Migo who is the kindest and sweetest and friendliest Yeti in the Village, she comes second to being the kindest and sweetest and friendliest Yeti in the Village.
- Rebellious Princess: Well, The Chief's Daughter, but by being The Leader of S.E.S, she basically goes against her father's claims that Smallfoot doesn't exist. She is also literally a princess because her father is the chief or king of the Yeti Village.
- Ship Tease: With Migo. He's heavily implied to have a strong crush on her, and a scene near the end of the movie implies she feels the same about him.
- Women Are Wiser: She's the one who first figures out that the reason humans attack is because they think they are monsters.
A large male teenage Himalayan Yeti with an afro who believes in the existence of Smallfoot and a member of the S.E.S.
- Berserk Button: Gwangi doesn't take being insulted and discredited kindly.
- The Big Guy: Is the largest of the S.E.S members.
- Conspiracy Theorist: Thinks that everything they've been told by the Stonekeeper is a lie. He's not wrong.
- Gentle Giant: He is very big, even compared to the other yetis, but also very loyal to his friends in S.E.S and generally non-aggressive.
- Ink-Suit Actor: Has an afro just like James has.
Migo's father who serves as the local gong-ringer for the Yeti village.
- Good Parents: He is shown to have a very good, loving relationship with Migo, is worried about him when he gets banished from the village and after Migo is forced to lie about the existence of humans and his friends become angry with him, he encourages him to do what he believes is right.
- Identity Crisis: Goes through one when he discovers that ringing the gong doesn't make the sunrise at all, and the job that has defined him his whole life is pointless and a lie.
- Ink-Suit Actor: He bears an uncanny resemblance to Mr. DeVito.
- Miniature Senior Citizens: He's very short for a Himalayan yeti. He was actually much taller than Migo once, but a lifetime of hurling himself headfirst into a gong has compressed his height considerably.
- The Napoleon: As a result of ringing the gong for years.
The village elder and the Chief of the Himalayan Yetis who claims that the stones he collects never lie.
- Anti-Villain: The Stonekeeper is the closest thing the movie has to an antagonist, but all of his actions come from a misguided desire to keep his village safe.
- Big Damn Heroes: He saves the S.E.S from the SWAT Team by throwing his entire stone robe at them.
- Big Good: All the yetis see him like this for the village.
- The Chains of Commanding: Each stone of his robe is a law of the village. It has been passed down for generations. In his own words, it is very heavy. He also bears the weight of knowledge of all the lies and omissions told to the people. He appears to be the only Himalayan Yeti who knows the whole story.
- Everyone Calls Him "Barkeep": His real name is unknown; he's only referred to as The Stonekeeper except by his children, who call him Dad or Daddy.
- Good Is Not Soft: He is probably the only character to actually use physical force in the entire movie, specifically, in the scene where he saves S.E.S from the SWAT Team by throwing stones at them.
- Heel Realization: When his actions result in Meechee running away to save Percy from dying of high-altitude sickness, he realizes that trying to hide the existence of humans may be causing more harm than good.
- Humans Are the Real Monsters: He believes all humans are selfish savages, which is why he takes care of the fog machine to keep his people safe.
- My God, What Have I Done?: Has this reaction when he realizes that Meechee has run away with Percy from home to return Percy to the human village.
- Papa Wolf: Breaks his own laws and even uses the sacred stones as weapons to save his young daughter.
- Walking Spoiler: It's hard to talk about him without mentioning that he lied about the outside world to protect his village.
- Well-Intentioned Extremist: Everything he has done (lying about the outside world, making the clouds that surround the mountain top) has been done only to protect his people from humans.
A young teenage female Himalayan Yeti who believes that Smallfoot exists and is a member of the S.E.S.
- Hair of Gold, Heart of Gold: Kolka's body is mostly yellowish gold including her hair, and she is shown to be really funny, loyal and friendly.
A member of the S.E.S. who believes that the Smallfoot exist.
- The Friend Nobody Likes: The other S.E.S. members don't seem to like him very much. Even he has a low opinion of himself.
- Large Runt: He is probably the smallest yeti out there, but still bigger than most humans.
- Phrase Catcher: When Fleem gets on the rest of the S.E.S.'s nerves, they usually snap at him by shouting "FLEEM!".
A jerkish slow-witted Himalayan Yeti who is the Stonekeeper's son and Meechee’s older brother.
- The Ditz: Thorp isn't the sharpest tool in the shed and it takes him a while to fully understand some things. Case in point, the following exchange:Thorp: Hey, Migo! You're banished! Don't you know what that means?Migo: Yeah, I do.Thorp: Really? What does it mean?
- Jerkass: Acts rudely to everyone, especially to Migo (at one point in the movie, Thorp called Migo annoying by saying that he has a high pitched annoying voice) and the S.E.S.
- Red Eyes, Take Warning: Subverted. Thorp has red eyes and is a Jerkass, but he is way too stupid to be dangerous.
- The Unfavorite: He feels that the Stonekeeper gives Meechee more attention and love than him. When Meechee explains (offscreen) her theory that it's the reason he acts like a jerk he locks up and declares he needs time to emotionally process the idea for a bit.
The Smallfoot Humans
A wildlife documentary filmmaker who has lost his integrity due to the Internet, more precisely YouTube. That is until he meets Migo, who literally teaches him that fame isn’t everything and that true friendship is really all that matters in the end.
- Alliterative Name: Percy Patterson.
- Attention Whore: His actions at first are directed at getting ratings for his struggling TV show, Percy Patterson’s Wildlife, for his YouTube Channel.
- Deuteragonist: Migo is the main character and primary focus of the movie, but Percy gets at least as much focus and development.
- Misplaced Accent: Has a British accent, but appears to be Irish.
- Took a Level in Kindness: His whole subplot is about him learning to regain his "integrity" throughout the movie.
Percy's assistant and co-worker for his YouTube show who doesn't believe that yetis exist.
- Agent Scully: She doesn’t believe that Yetis exist at the beginning of the movie. It isn’t until she sees them with her own eyes at the ending when the young teenage Yetis try to escape the Asian human city, that she believes that they exist.
- Disappointed in You: At first she admired Percy's dedication to his love for animals, but now that he's more interested in higher YouTube ratings, she feels like it's beneath him. Trying to stage a yeti attack is the last straw for her, and she abandons him, although they ultimately reconcile.
The first human to be seen in the film after he crash-lands on the mountain, causing Migo to believe that "Smallfoot" is real.
- No Name Given: His name is never spoken in the film, nor does he ever mention it.
- Small Role, Big Impact: He only appears in a few scenes through the movie, but his arrival to the yeti village at the beginning causes Migo to find out that humans really exist, kickstarting the entire plot of the movie altogether.
- You Have to Believe Me!: He tries to tell Percy near the bar that yetis are real after his encounter with Migo.