When he is not in his Halo armor, Master Chief is 6 feet, 8 inches tall and weighs 287 pounds. Inside his Halo armor, he is 7 feet tall and weighs 990 pounds.
Master Chief is the protagonist of a war between humans and aliens in the Halo video game franchise. He is a cybernetically-enhanced soldier created by Shi Kai Wang, Rob McLees and Marcus Lehto. As a child, Master Chief was kidnapped from a human colony planet by the government and trained to be a super-soldier, along with dozens of other kids. When he turned 8 years old, cybernetic enhancements were grafted onto his body.