Hannah Pearson is the youngest child of the Pearson kids, at 7-years old. At the beginning of the movie she walks into her brother's bedroom to let him know that he's in trouble. Later on she befriends Sparks, a friendly alien unlike the other aliens. Her cousins and siblings think Sparks is attacking her. But really they are playing with the bubble gun Sparks fixed for Hannah. When Sparks leaves at the end of the film, Hannah asks him to stay. But he shows her a picture of his family, and so she tearfully says goodbye to her alien friend. She calls Sparks, "Snuggle Lump".
Hannah is Cuddly, Adorable and cute and loves the attention of her family. Not to mention being the kindest one of the group, such as when Sparks got hurt she gave him a bandage and was the first one in the movie shown to care for him.
Hannah really is smaller and short then tom she has dark brown long hair and fair skin her outfit is purple t-shirt, blue shorts, and white sneakers and in the night it is blue