who composed its background score?
Mychael Danna and his brother, Jeff
The Good Dinosaur
Mychael Danna and his brother, Jeff,
who plays the voice of the good dinosaur Raymond Ochoa is it any character? It  is a  American 3D computer-animated comedy adventure film.
wiki:7909149
The Good Dinosaur [SEP] Soundtrack
The film's score was composed by Mychael Danna and his brother, Jeff, replacing Thomas Newman, who was originally attached to score the film when it was set to be directed by Bob Peterson. It marks the first Pixar film to be scored by two composers. Danna was approached by Sohn and Ream due to his score for "Life of Pi", which won an Academy Award. Having a lot of work, he invited his brother as a co-writer. Walt Disney Records released the soundtrack on November 20, 2015.