Olaf

Crown-prince Olaf of Arendelle, simply known as Olaf is a snowman, created by Queen Elsa shortly after her coronation. After she officially adopted him, he became the eldest of her snow-created adoptive sons and crown-prince of Arendelle

Personality
Olaf is very lighthearted and nice to everyone. He saved Princess Anna and is hereby very heroic. He is very nervous about being the next king of Arendelle.

He is the only one able to calm his younger brother Marshmallow. He also truly loves his other 5 siblings and helps Mars raise them.

History
Olaf was originally created by Elsa when she was 7 in 1826. But 14 years later, he was brought to life and declared Elsa's official adopted son.

Trivia

 * He loves his cousins Joseff and Heidi.