Ruffnut is tomboyish in nature, mostly because she is a Viking, but she does tend to find it offensive when her twin negatively comments about her physique. She can often be seen as smug, snarky, anarchic, irresponsible, and sometimes downright vicious but she also has a strong, compassionate, and selfless side. She loves punching and wrestling with Tuffnut. Despite their quarreling, on occasion, she is shown to pull them both out of danger. She dislikes having to share with her brother. 