Eep is one of the main characters. She is voiced by Emma Stone. She believes in leaving the cave therefore rebelling against her father's (Grug) rules of never leaving the cave .
Out of everyone in the family Eep hates the cave that they never leave the most, while Grug is telling them Krispy, a poor little stuffed animal that was filled with curiosity, saw something new and died. Eep seems to be annoyed by the story, for she has heard it many times before. She truly likes to explore new things; in that matter it makes her the oddball of the family because the rest of the family believes staying in the cave is the way to live. But when the cave and canyon area collapses they're forced on an amazing road trip. It is most likely that Eep is the most excited to do this. On the trip, they meet up with Guy, who Eep has a romance with (because he's the only male she's met outside her family). Eep has an almost kiss with Guy when they are maneuvering a bird puppet, and also where they realize they both have feelings for each other. Eep and Guy have "moments" which makes Grug dislike Guy more and he tries to interfere. Guy is a 2.0 human being, not as strong as the Croods but able to do way more things than Eep and the rest of her family, causing Grug to be even more protective, doing anything he can to keep these two apart. Eep just love to explore!
She is small and has caramel/red colored hair and green eyes. She wears a silky, tiger skin over-the-shoulder dress. She has a slender yet muscular body and smooth skin. She is thought to be Cro-Magnon. Sometimes, she is seen walking on four legs, and using her feet as hands, like a monkey, otherwise moving like a jungle cat. She, like the other Croods member, is very powerful physically.