Member of The Wrecking Crew, a 1960s group that recorded music anonymously for television and popular singers.
He was taught how to play trumpet by his father, who was the lead trumpeter for MGM Studios.
He founded Ollie Mitchell's Sunday Band, as well as the Olliephonic Horn ensemble.
He was married to a woman named Nancy and raised four children with her.
Mitchell was one of the original members of Herb Alpert's Tijuana Brass band.