Littlefoot

Littlefoot (or Lovable Littlefoot by fans) is the main protagonist of The Land Before Time series. He is a young Apatosaurus which is one of many creatures referred to as "Longnecks" by the characters in the franchise.

Why He Rules

1. He is endearing, adventurous, and ethical.
2. He goes through a range of different voice actors, all of whom try their best to sound as much like him as possible.
3. For a young dinosaur, he is quite intelligent, mature, and caring.
4. He has a positive attitude and encourages the rest of the group to work together. 
5. He sticks to his friends no matter what.
6. He believes there is good in anyone.