17 November 1984, in the United States, Mayes was born. His mother, Diana, reared him. His race is White, and he is an American citizen. Alex, his younger sibling, is ten years younger than he is. He is a Scorpio by zodiac sign.
Mayes began modeling at the young age of five. In 2003, Mayes graduated from University School. Afterward, he matriculated at Dulwich College in London and toured Europe with a band.
Rob pursued a military career after graduating from Dulwich College by enrolling at the United States Naval Academy. He was accepted to the Academy and chose to become a Navy Seal, but he decided to depart after 18 months.
