Marriott was a member of the New York Giants practice squad from 1961 to 1962 after going undrafted in the 1960 NFL draft.[2]
Marriott signed with the Montreal Alouettes to serve as the backup quarterback behind Sandy Stephens on July 29, 1963. He recorded one touchdown and ten interceptions on 81 passing attempts during the 1963 season. He was released by the Alouettes on July 31, 1964.[2]